Run into adolescent creating wooden items (5)
I believe the answer is:
treen
'wooden items' is the definition.
(I've seen this before)
'run into adolescent' is the wordplay.
'run' becomes 'r' (cricket abbreviation).
'into' indicates putting letters inside.
'adolescent' becomes 'teen' (teenager).
'r' inserted into 'teen' is 'TREEN'.
'creating' acts as a link.
(Other definitions for treen that I've seen before include "wooden items" , "Wooden antiques" , "Wooden ware" , "of wood" , "box, say" .)