The bench is alight (6)
I believe the answer is:
settle
This clue is a double definition.
'the bench' is the first definition.
(settle is a kind of bench)
'is alight' is the second definition.
(I've seen this before)
(Other definitions for settle that I've seen before include "Pay up or become established in place" , "Decide - stop moving" , "Bring to an end, agree terms" , "Come to rest or meet bill" , "Resolve; alight" .)