Crossword Genius

The role of the dwarf? (5,4)

Ross

I believe the answer is:

small part

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'the' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'role of the dwarf?' is the wordplay.
I cannot quite see how this works, but
'role' could be 'part' (eg a part or role in a film) and 'part' is located in the answer.
'dwarf?' could be 'small' ('small' can be similar in meaning to 'dwarf') and 'small' is found in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).

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I've seen this clue in the Evening Standard.
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