Is trapped in burning lift (5)
I believe the answer is:
hoist
'lift' is the definition.
(hoist can mean to lift something up)
'is trapped in burning' is the wordplay.
'trapped in' indicates putting letters inside.
'burning' becomes 'hot' (similar in meaning).
'is' placed inside 'hot' is 'HOIST'.
(Other definitions for hoist that I've seen before include "Lift (mechanically)" , "Lift with rope and pulley" , "Raise or haul up, say flag" , "Winch" , "Lift, raise" .)