Crossword Genius

Solitary digger was caught between a couple of spademen (4,4)

Ross

I believe the answer is:

sand wasp

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

'solitary digger was caught' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'a couple of spademen' is the wordplay.
I cannot really understand how this works, but
'a' could be 'an' and 'an' is present in the answer.
This may be the basis of the clue (or it may be nonsense).

'between' is the link.

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