Answer:

COO

Answer	Crossword Clue
COO	Dovish remark?
COO	Bill and ....
COO	Coop call

COO	Dove's call
COO	Bill's partner
COO	Dove utterance
COO	Pigeon English?
COO	Bill's mate
COO	Dove cry
COO	Pigeon's pronouncement
COO	Bill and ..

COO	Dove chat
COO	Dove's sound
COO	Pigeon's sound
COO	Ledge sound
COO	Whisper sweet nothings
COO	Dove sound
COO	Bill's partner?
COO	Get lovey-dovey

COO	Act lovey-dovey
COO	Lovey-dovey sound
COO	Murmur lovingly
COO	Turtledove's remark
COO	Imitate a dove
COO	Murmur
COO	Call of a dove
COO	Fond murmur

COO	Make like a dove
COO	Pigeon murmur
COO	Turtledove sound
COO	Speak lovingly
COO	Bill and ...
COO	Murmuring voice
COO	Musical birdcall
COO	Amorous murmur

COO	Gentle voice
COO	Sound from a cote
COO	Speak sweetly
COO	Bill's partner in romance?
COO	Cote call

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.