Board's on edge? (6)
I believe the answer is:
Here is my best explanation:
'board's' is the definition.
(board can mean to stay in an establishment)
'on edge?' is the wordplay.
'on' becomes 're' ('on' can be mean 'with reference to').
'edge?' becomes 'side' (I've seen this before**).
(Other definitions for reside that I've seen before include "Dwell in desire", "Settle", "Live in desire", "Dwell, be present (in)", "Make one's home permanently", "Stay - desire (anag)", "Live (in a place)", "Inhabit", "lodge" and "Desire (anag) - to live".)