River of service to me (5)

I believe the answer is:

meuse

'river' is the definition.
(Meuse is an example)

'service to me' is the wordplay.
'service' becomes 'use' (to be of service is to be of use).
'to' says to put letters next to each other (I've seen this in other clues).
'use' put after 'me' is 'MEUSE'.

'of' is the link.

(Another definition for meuse that I've seen is " Dept of NE France".)

Want a hint initially instead of a full solution? Install my app