Lift projection (4)
I believe the answer is:
hump
This clue is a double definition.
'lift' is the first definition.
(hump can mean to lift or carry with difficulty)
'projection' is the second definition.
(I know that hump is a type of projection)
(Other definitions for hump that I've seen before include "deformity" , "Decorative edging" , "Mound" , "Part of a camel" , "Rounded protuberance" .)