River erosion (4)

I believe the answer is:

wear

I believe this is a double definition.

'river' is the first definition.
(river in the north east of England)

'erosion' is the second definition.
(I've seen this before)

(Other definitions for wear that I've seen before include "Accept" , "Sunderland river" , "Northern runner" , "___ and tear" , "Apparel" .)

I've seen this clue in The Times, The Sun and The Telegraph.

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