There is a total of 7453 clues beginning with of
- Of higher quality
 - Of higher rank
 - Of higher rank than
 - Of higher rank
 - Of highest excellence
 - Of highest grade
 - Of Hindu history
 - Of Hindu incantations
 - Of Hindu sacred writing
 - Of Hindu scripture
 - Of Hindu scriptures
 - Of Hindu stock: Prefix
 - Of Hindu writings
 - Of Hispanic heritage
 - Of historic dimensions
 - Of historic importance
 - Of historic proportions
 - Of historic time
 - Of historical importance
 - Of hives, honey, etc
 - Of hogs and peccaries
 - Of Holland
 - Of Holy Communion
 - Of holy rites
 - Of homelanders: Sp
 - Of Horace's works
 - Of horses
 - Of horses, a color
 - Of hours
 - Of humble descent
 - Of humble parentage
 - Of humble status
 - Of humongous proportions
 - Of hymenopterans
 - Of icy regions
 - Of ideal quality
 - Of ill repute
 - Of immature insects
 - Of immediate concern
 - Of immediate interest
 - Of immediate interest
 - Of importance
 - Of importance to savers
 - Of importance
 - Of imposing height
 - Of imposing height
 - Of impressive height
 - Of impressive size
 - Of incisors and molars
 - Of inconsistent quality
 - Of indefinite age
 - Of indeterminate gender
 - Of India or Greenland [five vowels in reverse order]
 - Of infancy
 - Of inferior quality
 - Of inferior status
 - Of inferior status: Fr
 - Of inferior workmanship
 - Of inherited factors
 - Of inserted comment
 - Of intense pain
 - Of interest of dieters
 - Of interest to "hams"
 - Of interest to a collector, say
 - Of interest to a few
 - Of interest to a scout
 - Of interest to all
 - Of interest to an ENT
 - Of interest to archaeologists
 - Of interest to Audubon
 - Of interest to bird-watchers
 - Of interest to Carl Sagan
 - Of interest to collectors
 - Of interest to collectors, say
 - Of interest to generals
 - Of interest to Guinness
 - Of interest to Hizzoner
 - Of interest to John Paul
 - Of interest to Nimitz
 - Of interest to no pawnbroker?
 - Of interest to obstetricians
 - Of interest to ornithologists
 - Of interest to Peary
 - Of interest to purchasers
 - Of interest to rhinologists
 - Of interest to risk takers
 - Of interest to some physicists
 - Of interest to talk-show producers
 - Of interest to the IRS
 - Of interest to the Pope
 - Of interest to Wagner
 - Of interplanetary space
 - Of interstellar clouds
 - Of iris rings
 - Of irregular quality
 - Of Isis' brother
 - Of Israel's language
 - OF ITS OWN KIND
 - Of jays, martins, etc
 - Of John, Paul, etc