Polish ingredient (7)
I believe the answer is:
beeswax
'polish ingredient' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for beeswax that I've seen before include "Animal product for polish and candles" , "Natural product used in polishes" , "Hive-made polish" , "Output of buzzers" , "It's used to make honeycombs and candles" .)