Rear wheel bearing either left, right, or both sides needs replacing.
If you jack the car up and rotate the wheel by hand you should feel the roughness, it's an MOT failure item so it will be worth putting the registration into
https://www.check-mot.service.gov.uk/ to see if it's been previously advised.
The Honda charge for doing this is approx part £150 + labour £100, if you have a 30mm socket you can do it yourself for £40 each side. There is a guide on here, it's quite easy.
Motor factors will have the rear bearing in stock (or via eBay/Amazon) it's a popular item, but once replaced should be fine for the rest of the car's lifetime.
--
TG