Crossword Genius

Only a little girl, but she's maybe washed up (6)

Ross

I believe the answer is:

dishes

I'm a little stuck... Click here to teach me more about this clue!

'maybe washed up' is the definition.
I can't tell whether this defines the answer.

'only a little girl but she's' is the wordplay.
I cannot really see how this works, but
'girl' could be 'dis' (I've seen this in other clues) and 'dis' is found in the answer.
an anagram of 'she' is 'hes' which is located in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for dishes that I've seen before include "Concave plates" , "Plates or food courses" , "Containers for food" , "beauties" , "Tableware" .)

I've seen this clue in the Evening Standard.
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