Kitchen amenity daughter found on coach? Not initially (7)
I believe the answer is:
'kitchen amenity' is the definition.
(item used in the kitchen)
'daughter found on coach? not initially' is the wordplay.
'daughter' becomes 'd' (genealogical abbreviation).
'found on' is a charade indicator (letters next to each other).
'coach?' becomes 'trainer' (as in a sports coach).
'not initially' means to remove the first letter.
'trainer' with its initial letter taken off is 'rainer'.
(Other definitions for drainer that I've seen before include "Where crockery dries" , "Rack by a sink for letting crockery dry" , "Rack for wet crockery" , "one drying out?" , "drying device" .)