Corn to be seen in the wood? (5)
I believe the answer is:
grain
'corn' is the definition.
(I've seen this before)
'seen in the wood?' is the wordplay.
I cannot really understand how this works, but
'in' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'to be' acts as a link.
Can you help me to learn more?
(Other definitions for grain that I've seen before include "Cereal seed" , "Tiny amount" , "basis for whisky" , "Direction of fibres found in wood" , "Eg, wheat" .)