Grabs end of one wood (5)
I believe the answer is:
copse
'wood' is the definition.
(I've seen this in another clue)
'grabs end of one' is the wordplay.
'grabs' becomes 'cop' (I can't explain this - if you can you should give a lot more credence to this answer).
'end of' says to hollow out the word (remove centre letters) (I've seen 'ends of' mean this).
'one' becomes 'sole' (synonyms).
'sole' with its centre removed is 'se'.
'cop'+'se'='COPSE'
Can you help me to learn more?
(Other definitions for copse that I've seen before include "Scope for a small wood" , "Dense thicket of trees" , "Clump of small trees for regular cropping" , "Harvested woodland" , "Wood - thicket" .)