Factory worker taking boy for such practical experience (5-2)
I believe the answer is:
hands-on
'for such practical experience' is the definition.
(as in hands-on experience)
'factory worker taking boy' is the wordplay.
'factory worker' becomes 'hand' (I've seen this in other clues).
'taking' is a charade indicator (letters next to each other).
'boy' becomes 'son' ('son' can be a synonym of 'boy').
'hand'+'son'='HANDS-ON'
(Other definitions for hands-on that I've seen before include "Involving practical participation rather than theory" , "Actively involved" , "Transmits" , "Practical, working something directly - or manually" , "Involving direct practical participation" .)