Get comfortable on a wooden bench (6)
I believe the answer is:
settle
I believe this clue is a double definition.
'get comfortable' is the first definition.
(I've seen this before)
'a wooden bench' is the second definition.
(I've seen this before)
'on' acts as a link.
(Other definitions for settle that I've seen before include "small market town" , "N Yorks town" , "Resolve or reach an agreement" , "Come to an agreement about something" , "Fix; reside" .)