Empty sack that is right for winter sportsman (5)
I believe the answer is:
skier
'winter sportsman' is the definition.
(I've seen this before)
'empty sack that is right' is the wordplay.
'empty' means to remove the middle letters.
'that is' becomes 'ie' (abbreviation for id est, 'that is' in Latin).
'right' becomes 'r' (common abbreviation).
'sack' with its centre taken out is 'sk'.
'sk'+'ie'+'r'='SKIER'
'for' acts as a link.
(Other definitions for skier that I've seen before include "Slalom contestant, perhaps" , "Mountain racer" , "needs catching on way down" , "He glides over snow, perhaps in sport" , "Winter sportsman" .)