There is a total of 40594 clues beginning with so
- Source of snaps
- Source of sodium for livestock
- Source of sodium in the wild
- Source of soft down
- Source of soft drink ingredient
- Source of soft fabric
- Source of soft feathers
- Source of soft wool
- Source of soft, smooth leather
- Source of softwood
- Source of solar energy
- Source of solar power
- Source of Solomon's gold
- Source of Solomon's gold
- Source of Solomon's treasure
- Source of soluble fiber
- Source of some '60s trips
- Source of some academic problems
- Source of some acting prompts
- Source of some airstrikes
- Source of some alarms
- Source of some allergic reactions
- Source of some allergies
- Source of some annoying online messages
- Source of some bangs
- Source of some bashorg material
- Source of some benefits
- Source of some big waves
- Source of some blasts
- Source of some blowups
- Source of some blues
- Source of some brandy
- Source of some breakfast juice
- Source of some bubbles
- Source of some carbs
- Source of some carpets and cats, once [#UniversalXwordPride]
- Source of some cats and carpets
- Source of some chest thumping
- Source of some cigars
- Source of some clicking
- Source of some clicks
- Source of some coffee
- Source of some court evidence
- Source of some crime
- Source of some cruise ship beer?
- Source of some cubes
- Source of some cures
- Source of some current events?
- Source of some cuts in the market
- Source of some DC funding
- Source of some discrimination
- Source of some expansion
- Source of some extracts
- Source of some fertilizer
- Source of some fevers
- Source of some filings
- Source of some flashbacks
- Source of some fluff
- Source of some food poisoning
- Source of some foot-stomping
- Source of some fossils
- Source of some frenzy
- Source of some Genesis attire?
- Source of some govt checks
- Source of some grease
- Source of some green drinks
- Source of some greens
- Source of some hallucinations
- Source of some highly prized 19-Acrosses
- Source of some Hurricane Katrina insurance claims
- Source of some icebergs
- Source of some inside humor?
- Source of some inside info?
- Source of some intolerance
- Source of some issues?
- Source of some jail violence?
- Source of some kitchen tears
- Source of some large-scale shaking
- Source of some leather
- Source of some light reading?
- Source of some linguistic confusion
- Source of some long flows
- Source of some lows
- Source of some mathematical symbols
- Source of some Mideast calls
- Source of some military intelligence
- Source of some milk
- Source of some motel discounts
- Source of some muddy footprints?
- Source of some mushrooms
- Source of some needles
- Source of some net receipts?
- Source of some nostalgia
- Source of some of the oil for 31-Down
- Source of some omega-3s
- Source of some overhead coverage
- Source of some overhead footage
- Source of some paper pulp
- Source of some PBS programs
- Source of some penetrating notes