Person you like to wash up? (3)
I believe the answer is:
pal
'person' is the definition.
The answer is an example.
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for pal that I've seen before include "China" , "Mate, informal friend" , "Brother" , "Crony" , "Friend (colloq.)" .)