Would echo in the forest (4)
I believe the answer is:
'forest' is the definition.
(synonyms)
'would echo' is the wordplay.
I cannot quite understand how this works, but
'would' could be 'd' (as in 'we'd' - 'we would') and 'd' is found within the answer.
The remaining letters 'woo' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'in the' is the link.
Can you help me to learn more?
(Other definitions for wood that I've seen before include "Dense growth of trees" , "What you might need to play golf" , "Large group of trees" , "Small forest; golf club" , "Old conductor" .)