It's repetitious nowadays - perhaps one has to be given time (9)
I believe the answer is:
iterative
'it's repetitious' is the definition.
(synonyms)
'nowadays perhaps one has to be given time' is the wordplay.
I cannot really see how this works, but
'one' could be 'i' (Roman numeral) and 'i' is found in the answer.
'time' could be 'era' (era is a kind of time) and 'era' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for iterative that I've seen before include "repeated" , "Involving repetition" , "bears repeating" , "Relating to repetition" .)