Beam's, say, providing lift (5)
I believe the answer is:
raise
'lift' is the definition.
('raise' can be a synonym of 'lift')
'beam's say' is the wordplay.
'beam's' becomes 'rays' (synonyms).
'say' shows a homophone (sound like).
'rays' is a homophone of 'RAISE'.
'providing' acts as a link.
(Other definitions for raise that I've seen before include "Make greater" , "cairn" , "Contact" , "Collect - increase in pay" , "Lift; (to) levy (money)" .)