Stay and brood (5)
I believe the answer is:
dwell
I believe this clue is a double definition.
'stay' is the first definition.
(I've seen this before)
'brood' is the second definition.
('dwell' can be a synonym of 'brood')
'and' is the link.
(Other definitions for dwell that I've seen before include "Inhabit" , "Think moodily (on something)" , "Reside - linger" , "Settle" , "Live (in a place)" .)