The winch is hot outside (5)
I believe the answer is:
hoist
'the winch' is the definition.
(I've seen this before)
'is hot outside' is the wordplay.
'outside' means one lot of letters goes inside another.
'is' placed inside 'hot' is 'HOIST'.
(Other definitions for hoist that I've seen before include "Give a lift" , "I shot (anag)" , "Substance forming outer skeleton of insects, etc" , "Lift with aid of block and tackle" , "Lift, raise" .)