Garment for groom? (5)
I believe the answer is:
dress
This clue is a double definition.
'garment' is the first definition.
(dress is a type of garment)
'groom?' is the second definition.
('dress' can be a synonym of 'groom')
'for' is the link.
(Other definitions for dress that I've seen before include "This woman might slip on" , "clean > bandage" , "Adorn" , "Straighten the line" , "Uniform" .)