Hiding place for a couple of sticks of wood! (5)
I believe the answer is:
stash
'hiding place' is the definition.
(I've seen this in another clue)
'couple of sticks of wood' is the wordplay.
'couple of sticks of' becomes 'st' (I can't explain this - if you can you should give a lot more credence to this answer).
'wood' becomes 'ash' (wood from an ash tree).
'st'+'ash'='STASH'
'for a' acts as a link.
Can you help me to learn more?
(Other definitions for stash that I've seen before include "Secret store of valuables" , "Treasure trove" , "Stow away" , "(Hidden store of) drugs" , "(Illegal) hoard" .)