Lift boy picked up (6)
I believe the answer is:
fillip
'lift' is the definition.
(a fillip is a boost or lift)
'boy picked up' is the wordplay.
'boy' becomes 'Philip' (boy's name).
'picked up' indicates a 'sounds like' (homophone) clue.
'philip' is a homophone of 'FILLIP'.
(Other definitions for fillip that I've seen before include "'Short, quick stimulus (6)'" , "shot in the arm" , "Stimulus or incentive" , "Incitement" , "Spur - incentive" .)