2000 V70 (P80), 245K miles

Car had been sitting for about two weeks (temperature above freezing the whole time). Rear washer / nozzle spray worked OK before parking.

Now, when washer button is pushed on the right hand stalk, the rear wiper moves but there is no washer spray discharge from the tailgate nozzle. Can hear the reservoir pump spinning when engaged. Front windshield washer and wipers work OK.

Likely the rear nozzle is clogged, or is something else going on as a possibility? If a clog, any hints about how to clear the small nozzle?

Thanks for any ideas.