Lift light beams that can be picked up (5)
I believe the answer is:
raise
'lift' is the definition.
('raise' can be a synonym of 'lift')
'light beams that can be picked up' is the wordplay.
'light beams' becomes 'rays' (I've seen this before).
'that can be picked up' indicates a 'sounds like' (homophone) clue.
'rays' is a homophone of 'RAISE'.
(Other definitions for raise that I've seen before include "To promote" , "Wage increase" , "Heighten" , "Call up" , "cairn" .)