Was Keir wrong to steal Tory leader's sports equipment? (5-3)
I believe the answer is:
water-ski
'sports equipment?' is the definition.
'was keir wrong to steal tory leader's' is the wordplay.
'wrong' is an anagram indicator.
'to steal' means one lot of letters goes inside another.
'tory leader's' becomes 't' (I've seen this in other clues).
'was'+'keir'='waskeir'
'waskeir' with letters rearranged gives 'waerski'.
'waerski' going around 't' is 'WATER-SKI'.
(Other definitions for water-ski that I've seen before include "Travel behind speedboat" , "Get towed behind a motorboat" , "Be towed behind a speedboat" , "Item used in aquatic sport" , "Engage in aquatic sport" .)