I'm limited by routine working nowadays (2,3,4)

I believe the answer is:

in our time

'nowadays' is the definition.
(in the current time)

'i'm limited by routine working' is the wordplay.
'limited by' is an insertion indicator (limit can mean to contain or border off).
'working' indicates anagramming the letters.
'routine' anagrammed gives 'inourte'.
'im' going into 'inourte' is 'IN OUR TIME'.

I've seen this clue in The Times.

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