Time old reprobate perhaps announced for excursion (3,4)

I believe the answer is:

day trip

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'excursion' is the definition.
(I've seen this before)

'time old reprobate perhaps announced for' is the wordplay.
'time' becomes 'day' (day is a kind of time).
'old reprobate perhaps announced for' becomes 'trip' (I can't explain this - if you can you should give a lot more credence to this answer).
'day'+'trip'='DAY TRIP'

Can you help me to learn more?

(Other definitions for day trip that I've seen before include "Excursion within 24 hours" , "Pay dirt (anag.)" , "Brief excursion" , "Outing" .)

I've seen this clue in The Times.

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