Uplift one gets in a crowd (5)
I believe the answer is:
hoist
'uplift' is the definition.
(I've seen this in another clue)
'one gets in a crowd' is the wordplay.
'one' becomes 'i' (Roman numeral).
'gets in' is an insertion indicator.
'a crowd' becomes 'host' (both can mean a large number of people).
'i' placed within 'host' is 'HOIST'.
(Other definitions for hoist that I've seen before include "Lift (mechanically)" , "Heave upwards" , "Lift using pulley and ropes" , "Wind up" , "Elevate" .)