Crossword Genius

Busy, even at university! (4,2)

Ross

I believe the answer is:

tied up

'busy' is the definition.
('tied up' can be similar in meaning to 'busy')

'even at university' is the wordplay.
'even' becomes 'tied' ('tied' can be a synonym of 'even').
'at university' becomes 'up'.
'tied'+'up'='TIED UP'

(Other definitions for tied up that I've seen before include "Secured; engaged" , "Thus prisoner may be kept" , "busy" .)

I've seen this clue in The Telegraph.
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