Go wandering and find accommodation across river (5)
I believe the answer is:
stray
'go wandering' is the definition.
(to stray is to wander)
'find accommodation across river' is the wordplay.
'find accommodation' becomes 'stay' (staying in accommodation).
'across' is an insertion indicator.
'river' becomes 'r' (abbreviation for river).
'stay' going around 'r' is 'STRAY'.
'and' is the link.
(Other definitions for stray that I've seen before include "Homeless cat" , "Depart from the right path" , "Wander from the path" , "Wander off course" , "Drift - isolated" .)