Grooms dined in Nova Scotia (7)
I believe the answer is:
neatens
'grooms' is the definition.
(I know this)
'dined in nova scotia' is the wordplay.
'dined' becomes 'eaten' (I've seen this in another clue).
'in' is an insertion indicator.
'nova scotia' becomes 'ns' (this could be a standard abbreviation which I don't know about).
'eaten' put within 'ns' is 'NEATENS'.
Can you help me to learn more?
(Other definitions for neatens that I've seen before include "Cleans up" , "Tidies" , "Makes less 9" .)