Where a Scot might cure my failing hearing initially on river (9)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

Where a Scot might cure my failing hearing, initially, on river COR (=my! gosh!, as an exclamation) + F <ailing> H <earing> (“initially” means first letters only) + OUSE (=river, in UK); a corfhouse is a salmon-curing house in Scotland