Crossword Genius

Many invited to a kind of ball (6)

Ross

I believe the answer is:

masked

'to a kind of ball' is the definition.
(I've seen this in another clue)

'many invited' is the wordplay.
'many' becomes 'm' (Roman numeral for a thousand).
'invited' becomes 'asked' (I've seen this in another clue).
'm'+'asked'='MASKED'

(Other definitions for masked that I've seen before include "With covered face" , "Disguised, covered" , "Blocked out, disguised" , "Unseen" .)

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