Lift up some beams, you say? (5)
I believe the answer is:
raise
'lift up' is the definition.
(I've seen this before)
'some beams you say?' is the wordplay.
'some beams' becomes 'rays' (I've seen this before).
'you say?' shows a homophone (sound like).
'rays' is a homophone of 'RAISE'.
(Other definitions for raise that I've seen before include "Gather" , "Care for during childhood" , "What a poker player might do" , "Contact" , "Lift - increase" .)