Award points for being overweight (5)
I believe the answer is:
obese
'being overweight' is the definition.
(I've seen this before)
'award points' is the wordplay.
'award' becomes 'OBE' (Order of the British Empire).
'points' becomes 'se' (two compass points).
'obe'+'se'='OBESE'
'for' is the link.
(Other definitions for obese that I've seen before include "Grossly overweight" , "round" , "Extremely portly" , "Huge" , "Enormously portly" .)