Banker runs inside shelter (5)
I believe the answer is:
trent
'banker' is the definition.
Both the definition and answer are singular nouns.
Maybe you can see an association between them that I can't see?
'runs inside shelter' is the wordplay.
'runs' becomes 'r' (cricket abbreviation).
'inside' is an insertion indicator.
'shelter' becomes 'tent' (tent is a kind of shelter).
'r' inserted within 'tent' is 'TRENT'.
Can you help me to learn more?
(Other definitions for trent that I've seen before include "River at Newark/Stoke" , "Notts. river" , "Stoke's river" , "running water" , "Midlands banker" .)