Crossword Genius

When Scot joined Indian, say (5)

Ross

I believe the answer is:

asian

'indian say' is the definition.
(indian is a kind of Asian)

'when scot joined' is the wordplay.
'when' becomes 'as'.
'scot' becomes 'ian'.
'joined' is a charade indicator (letters next to each other).
'as'+'ian'='ASIAN'

(Other definitions for asian that I've seen before include "One from the East" , "florid writing" , "Thai or Iranian, perhaps?" , "Type of flu" , "From large continent" .)

I've seen this clue in The Mirror.
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