Crossword Genius

Caught raven dancing in Beatles club (6)

Ross

I believe the answer is:

cavern

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

'beatles club' is the definition.
The definition and answer can be both to do with contact as well as being verbs in their base form.
Perhaps there's a link between them I don't understand?

'caught raven dancing in' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'dancing' is an anagram indicator.
'in' means one lot of letters goes inside another.
'raven' is an anagram of 'avern'.
'c' going within 'avern' is 'CAVERN'.

Can you help me to learn more?

(Other definitions for cavern that I've seen before include "vast enclosed space" , "Large cave" , "Large underground hollow" , "Detection device" , "Craven in a cave" .)

I've seen this clue in The Sun.
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