Content of bisque? A kitchen-maid's to tell (6)
I believe the answer is:
squeak
'tell' is the definition.
(thesaurus)
'content of bisque? a kitchen-maid's' is the wordplay.
'content of' says the answer is hidden in the clue.
'SQUEAK' is hidden in the letters of 'bisque a kitchen maids'.
'to' acts as a link.
(Other definitions for squeak that I've seen before include "Short, high-pitched noise" , "Supposed noise of a mouse" , "Short high-pitched cry as of bat" , "Short shrill sound" , "Sound of a mouse" .)