Lord Haw-Haw's girl? (5)

I believe the answer is:

joyce

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

This might be a double definition.

'lord haw-haw's' is the first definition.
Both the answer and definition are singular nouns.
Maybe they are linked in a way I don't understand?

'girl?' is the second definition.

Can you help me to learn more?

(Other definitions for joyce that I've seen before include "James . . . . ., great Irish novelist" , "James -, Ulysses author" , "James --, Irish writer" , "William ---, Lord Haw-Haw" , "lady" .)

I've seen this clue in the Evening Standard.

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