Small winter garment swept off one's feet (7)
I believe the answer is:
smitten
'swept off one's feet' is the definition.
(both can mean in love)
'small winter garment' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'winter garment' becomes 'mitten' (mittens are a type of gloves).
's'+'mitten'='SMITTEN'
(Other definitions for smitten that I've seen before include "Enchanted by mittens" , "Captivated" , "Affected by something overwhelming" , "Much affected; struck" , "Obsessed (when in love?)" .)