Captivate again with a fair amount of the omen in reggae melody
I believe the answer is:
reengage
'omen in reggae melody' is the definition.
The definition suggests a verb in its base form which matches the answer.
'captivate again with a fair amount of the' is the wordplay.
I cannot really see how this works, but
'again' could be 're' and 're' is found in the answer.
'a' is found in the answer.
'amount' could be 'en' (en is a kind of amount) and 'en' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for reengage that I've seen is " Again take on".)