Leaf from dayflower is given by the bride on the big day (5)
I believe the answer is:
dowry
'leaf' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'from dayflower is given by the bride on the big day' is the wordplay.
I cannot really see how this works, but
'from' could be 'o' (I've seen this in other clues) and 'o' is present in the answer.
'day' could be 'd' (abbreviation for day) and 'd' is found in the answer.
The remaining letters 'wry' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for dowry that I've seen before include "In olden days, the bride's parents paid this to the husband" , "Wealth brought by a bride" , "Property bride brings" , "Bride's contribution" , "present for husband" .)