Asian mother, 50? Indeed (5)

I believe the answer is:

malay

'asian' is the definition.
(I know that Malay is a type of asian)

'mother 50? indeed' is the wordplay.
'mother' becomes 'ma' (Ma is another word for mother or mum).
'50?' becomes 'l' (Roman numeral).
'indeed' becomes 'ay' ('ay' and 'aye' can mean yes).
'ma'+'l'+'ay'='MALAY'

I've seen this clue in The Times.

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