Game played on ice (7)
I believe the answer is:
curling
'game played on ice' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for curling that I've seen before include "providing treatment for shock?" , "Sport played on ice" , "Winter sport where stones are slid towards a target" , "Not a straightforward" , "Game played on ice" .)