Whiffs pants (5)
I believe the answer is:
puffs
This clue is a double definition.
'whiffs' is the first definition.
('puff' can be a synonym of 'whiff')
'pants' is the second definition.
('puff' can be a synonym of 'pant')
(Other definitions for puffs that I've seen before include "Birds" , "unwarranted praise?" , "Exaggerated praise" , "good reviews" , "pants" .)