Crossword Genius

A dandy, too (2,4)

Ross

I believe the answer is:

as well

'too' is the definition.
('as well' can be a synonym of 'too')

'a dandy' is the wordplay.
'dandy' becomes 'swell' ('swell' can be a synonym of 'dandy').
'a'+'swell'='AS WELL'

(Other definitions for as well that I've seen before include "with equal effect" , "on top" , "A swell sort of addition" , "Appropriate" , "Also, in addition" .)

I've seen this clue in The Telegraph.
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