Locate tree-change voters (10)
I believe the answer is:
electorate
'voters' is the definition.
(I've seen this in another clue)
'locate tree-change' is the wordplay.
'change' is an anagram indicator.
'locate'+'tree'='locatetree'
'locatetree' is an anagram of 'ELECTORATE'.
(Other definitions for electorate that I've seen before include "Voters in general" , "Everyone choosing" , "Constituency" , "Voters collectively" , "Voters as a whole" .)