Instagram contribution covering points for spiced drink (6)
I believe the answer is:
posset
'spiced drink' is the definition.
'instagram contribution covering points' is the wordplay.
'instagram contribution' becomes 'post' (Instagram is a social network).
'covering' means one lot of letters goes inside another.
'points' becomes 'se' (**).
'post' placed around 'se' is 'POSSET'.
'for' acts as a link.
(Other definitions for posset that I've seen before include "So step on curdled milk once used as a cold remedy" , "Sweet spiced milk curdled with alcohol" , "As relief for cold" , "Curdled milk drink" .)