Is stuck in very warm lift (5)
I believe the answer is:
Here is my best explanation:
'lift' is the definition.
(hoisting is a kind of lifting)
'is stuck in very warm' is the subsidiary indication.
'stuck in' is an insertion indicator.
'very warm' becomes 'hot' (I've seen this before).
'is' going within 'hot' is 'hoist'.
(Other definitions for hoist that I've seen before include "(Equipment for) lift(ing)", "Raise aloft", "Lifting tackle", "Lift up; device for this", "Haul up", "I shot (anag)", "Elevate", "Lift with ropes and pulleys", "Lift(ing device)" and "Lift with rope and pulley".)