And I take a break? I don't, I work on, too (2,8)

I believe the answer is:

in addition

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'too' is the definition.
(I've seen this in another clue)

'and i take a break? i don't i work on' is the wordplay.
'and' becomes 'n' (common abbreviation for 'and').
'i' becomes 'a'.
'take a break?' becomes 'id' (I can't explain this - if you can you should believe this answer much more).
'work' indicates anagramming the letters.
'on' indicates putting letters inside (as in clothing 'on' a person).
'i'+'dont'+'i'='idonti'
'idonti' is an anagram of 'dition'.
'id'+'dition'='iddition'
'n'+'a'='na'
'na' going inside 'iddition' is 'IN ADDITION'.

Can you help me to learn more?

(Another definition for in addition that I've seen is " Also".)

I've seen this clue in the Evening Standard.

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