Fawn seen in group of trees close to wall (6)
I believe the answer is:
grovel
'fawn' is the definition.
('grovel' can be a synonym of 'fawn')
'group of trees close to wall' is the wordplay.
'group of trees' becomes 'grove' (I can't justify this - if you can you should believe this answer much more).
'close to' says to take the final letters (the close/ending of).
The last letter of 'wall' is 'l'.
'grove'+'l'='GROVEL'
'seen in' is the link.
Can you help me to learn more?
(Other definitions for grovel that I've seen before include "Cringe, be obsequious" , "Crawl, fawn" , "Display abject humility" , "Behave obsequiously in fear or servitude" , "Crawl abjectly" .)