Is bothered by (5)
I believe the answer is:
minds
'is bothered by' is the definition.
('mind' can be a synonym of 'be bothered by')
This is the entire clue.
(Other definitions for minds that I've seen before include "Takes care of" , "Objects to; intellects" , "Objects to; brains" , "Tends; objects to" , "Looks after for a while" .)