Smart-aleck took back present and everything (4-3)

I believe the answer is:

know-all

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'smart-aleck took back present and everything' is the definition.
I can't tell whether this definition defines the answer.

'took back present and everything' is the wordplay.
'back' says to take the final letters.
'present' becomes 'now' (both can mean the current period).
'and' is a charade indicator (letters next to each other).
'everything' becomes 'all' (all things).
The last letter of 'took' is 'k'.
'k'+'now'+'all'='KNOW-ALL'

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(Other definitions for know-all that I've seen before include "One supposedly omniscient" , "Type of person who wont take advice" , "Clever dick!" , "Pretender to great learning" , "Self-styled polymath" .)

I've seen this clue in the Sydney Morning Herald.

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