There is a total of 6422 clues beginning with op
- Operational division
- Operational flight
- Operational flight by a single aircraft
- Operational headquarters
- Operational lines?
- Operational state
- Operational
- Operations are performed in it
- Operations center
- Operations ctrs
- Operations mgrs
- Operations place
- Operations were once commonly performed in this
- Operations ___ (Army position)
- Operative
- Operative Carrie Mathison's org in "Homeland"
- Operative with access
- Operative word screamed in Frankenstein's lab
- Operative's employer
- Operative's org
- Operative, as a rule
- Operative, for short
- Operative
- Operative: Abbr
- Operative: Colloq
- Operative: Slang
- Operatives
- Operatives living in secret, and a hint to four squares in this grid
- Operatives of a special sort
- Operatives' org
- Operatives
- Operatives: Abbr
- Operator
- Operator for destruction
- Operator of 17-Across, for short
- Operator of a blast furnace
- Operator of a bolter
- Operator of a carpenter's tool
- Operator of a lathe
- Operator of a metal plant
- Operator of a Shooting Star
- Operator of a Wild West transport
- Operator of Acela trains
- Operator of Maple Leaf Lounges
- Operator of MouthHealthyorg
- Operator of small engine
- Operator of spay/neuter clinics, for short
- Operator of the California Zephyr
- Operator of the largest brewery facility in the world
- Operator of the MilleMiglia program
- Operator of the original NYC subway
- Operator of the Palomar Observatory
- Operator of the Utah Data Center, for short
- Operator of the world's largest brewing facility
- Operator of weathergov
- Operator represented by a downward arrow in symbolic logic
- Operator's accessory
- Operator's concern: Abbr
- Operator's courteous request
- Operator's cut
- Operator's directive
- Operator's item
- Operator's jobs
- Operator's line
- Operator's need
- Operator's number?
- Operator's org?
- Operator's post, once
- Operator's request
- Operator's setups
- Operator's tool
- Operator's wear
- Operator, at times
- Operator, perhaps
- Operator
- Operator: Abbr
- Operators
- Operators are involved with them
- Operators aren't fired, they're ___
- Operators of river boats
- Operators of weaving machines?
- Operators standing by?
- Opercula
- Operculum
- Operculum
- Opere ___ (in the work quoted): Lat
- Operetta "___ Rita"
- Operetta by Balfe, 1843
- Operetta by de Koven
- Operetta by Friml
- Operetta by George Forrest
- Operetta by Kalman
- Operetta by Rudolph Friml
- Operetta by Sigmund Romberg (with "The”)
- Operetta character whose son is Nanki-Poo
- Operetta composer
- Operetta composer Franz
- Operetta composer Franz von __
- Operetta composer Franz ___
- Operetta composer