Move DIY into section that shows profit (3,4)
I believe the answer is:
pay dirt
'profit' is the definition.
(informal term for profit)
'move diy into section' is the wordplay.
'move' is an anagram indicator (I've seen 'moved' mean this).
'into' means one lot of letters goes inside another.
'section' becomes 'part' (synonyms).
'diy' is an anagram of 'ydi'.
'ydi' put within 'part' is 'PAY-DIRT'.
'that shows' acts as a link.
(Other definitions for pay dirt that I've seen before include "Ground containing ore in profitable amounts" , "profitable success" , "Rich ore-bearing ground (US)" .)