Go ashore and strip tree (6)
I believe the answer is:
debark
This clue is a double definition.
'go ashore' is the first definition.
(synonyms)
'strip tree' is the second definition.
(I've seen this before)
'and' acts as a link.
(Other definitions for debark that I've seen before include "strip tree" , "Leave ship, go ashore" , "land" .)