A number get well and live (5)
I believe the answer is:
dwell
'live' is the definition.
(to live/dwell somewhere)
'a number get well' is the wordplay.
'a number' becomes 'd' (D is an example).
'get' is a charade indicator (letters next to each other).
'd'+'well'='DWELL'
'and' acts as a link.
(Other definitions for dwell that I've seen before include "Lodge" , "Harp" , "Exist (within)" , "Hang out" , "stay" .)