Chivalrous chaps (9)
I believe the answer is:
gentlemen
'chivalrous chaps' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for gentlemen that I've seen before include "'Time ____ 15!'" , "Adult males" , "fellows held to be considerate?" , "Males with good manners" , "Convenience" .)