There is a total of 6259 clues beginning with is
- Is conservative in blackjack, say
 - Is considerate of
 - Is consistent (with)
 - Is consistent
 - Is conspicuous
 - Is conspicuous
 - Is constructive?
 - Is contemptuous
 - Is content with not taking any action
 - Is contiguous
 - Is contiguous to
 - Is contiguous with
 - Is contiguous
 - Is contingent
 - Is contrite
 - Is contrite about
 - Is contrite, in a way
 - Is conveyed
 - Is convicted, slangily
 - Is convinced
 - Is correct to the last detail
 - Is correctly adjusted
 - Is courteous with one's toys
 - Is covered in dew, perhaps
 - Is covetous of
 - Is crabby?
 - Is craftier than
 - Is crawling
 - Is crawling (with)
 - Is crazy about
 - Is crazy about
 - Is creative, like a collector?
 - Is critical
 - Is critical of
 - Is critical of: Slang
 - Is critically important
 - Is crowded (with)
 - Is cultured
 - Is curious
 - Is curious about
 - Is current
 - Is currently employed?
 - Is currently promoting, as a song
 - Is currently selling
 - Is daffy about
 - Is dating
 - Is dazed
 - Is dead serious
 - Is dead-on
 - Is deceitful
 - Is deceptive
 - Is deceptive, in a way
 - Is decisive
 - Is decked out in
 - Is deemed (to be)
 - Is deep in the red
 - Is deeply concerned about
 - Is deeply moved
 - Is defeated
 - Is defeated by
 - Is defeated
 - Is defiant, in a way
 - Is deficient
 - Is deficient in
 - Is defined as
 - Is definitely not in the pink
 - Is dehydrated
 - Is dejected
 - Is delighted
 - Is dependent
 - Is dependent (on)
 - Is deprived of
 - Is derisive
 - Is deserving
 - Is deserving of
 - Is desperate for
 - Is despicable
 - Is determined
 - Is determined by
 - Is devious
 - Is devoted to
 - Is difficult
 - Is dilettantish
 - Is directed?
 - Is discontinued
 - Is discourteous to
 - Is discredited
 - Is dishonest with
 - Is dishonest with, in a way
 - Is dishonest, in a way
 - Is dismissed, as a class
 - Is dismissed, as school
 - Is dismissed, pirate style
 - Is dispersed over
 - Is dispirited
 - Is displeased and then some
 - Is disposed
 - Is disposed (to)
 - Is disposed to
 - Is disrespectful verbally