Henry's uncle, divorcee, chopped up tree (6)
I believe the answer is:
exeter
'henry's uncle' is the definition.
(Duke of Exeter, uncle of Henry V)
'divorcee chopped up tree' is the wordplay.
'divorcee' becomes 'ex' (I've seen this in other clues).
'chopped up' is an anagram indicator.
'tree' with letters rearranged gives 'eter'.
'ex'+'eter'='EXETER'
(Other definitions for exeter that I've seen before include "West Country cathedral city" , "The modern Isca Dumnoniorum" , "Cathedral city of southwest England" , "See" , "County town and cathedral city of Devon" .)