In three-quarters of an hour two hundred take place (5)
I believe the answer is:
occur
'take place' is the definition.
(synonyms)
'in three-quarters of an hour two hundred' is the wordplay.
I cannot quite see how this works, but
'of' could be 'o' and 'o' is present in the answer.
'hundred' could be 'c' (Roman numeral) and 'c' is located in the answer.
The remaining letters 'cur' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for occur that I've seen before include "Spring to mind" , "Come to pass" , "Happen, transpire" , "Turn up" , "found" .)