Crossword Genius

Numeral is strangely half-moon shaped (9)

Ross

I believe the answer is:

semilunar

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

'moon shaped' is the definition.
(thesaurus)

'numeral is strangely' is the wordplay.
'strangely' indicates anagramming the letters.
'numeral'+'is'='numeralis'
'numeralis' anagrammed gives 'SEMILUNAR'.

'half' acts as a link.
I am not very happy about this link. It may be part of another bit of the clue.

Can you help me to learn more?

(Another definition for semilunar that I've seen is " like half a grapefruit?".)

I've seen this clue in The Times.
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