Some strapping lad entering forest clearing (5)
I believe the answer is:
glade
'forest clearing' is the definition.
(I've seen this before)
'some strapping lad entering' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'GLADE' can be found hidden inside 'strapping lad entering'.
(Other definitions for glade that I've seen before include "Woodland open space" , "Woodland opening" , "An open space in a forest" , "Clearing in wood" , "Open space in a wood" .)