Crossword Genius

There could be more than two (5)

Ross

I believe the answer is:

three

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

'more than two' is the definition.
I can't tell whether this definition defines the answer.

'there could be' is the wordplay.
'could be' indicates an anagram.
'there' is an anagram of 'THREE'.

Can you help me to learn more?

(Other definitions for three that I've seen before include "Amount in a trio" , "Number that's a crowd" , "Number of feet in a yard" , "Number of blind mice" , "Snooker score for potting green ball" .)

I've seen this clue in The Globe and Mail.
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