Tropical tree some accommodated in bar (6)
I believe the answer is:
banyan
'tropical tree' is the definition.
(I've seen this in another clue)
'some accommodated in bar' is the wordplay.
'some' becomes 'any' (similar in meaning).
'accommodated in' means one lot of letters goes inside another.
'bar' becomes 'ban' (bar can mean to ban or prohibit).
'any' going into 'ban' is 'BANYAN'.
(Other definitions for banyan that I've seen before include "Crush underfoot" , "plant" , "Fig tree with aerial roots" , "one that does give a fig" , "Multi-trunked Indian tree" .)