Publicise something; inform about overturned chopped tree (9)
I believe the answer is:
advertise
'publicise' is the definition.
(synonyms)
'inform about overturned chopped tree' is the wordplay.
'inform' becomes 'advise' (advising is a kind of informing).
'about' is an insertion indicator.
'overturned' is an anagram indicator.
'chopped' means to remove the last letter.
'tree' with its final letter removed is 'tre'.
'tre' with letters rearranged gives 'ert'.
'advise' going around 'ert' is 'ADVERTISE'.
'something' acts as a link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for advertise that I've seen before include "Draw attention to, goods for sale perhaps" , "Publicize, call attention to" , "Publicise, make known" , "Make public what is for sale" , "Publicise, promote" .)