Oleander obtained from nymph after party with Greek character (11)
I believe the answer is:
rhododaphne
'oleander obtained' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'nymph after party with greek character' is the wordplay.
I cannot quite understand how this works, but
'nymph' could be 'daphne' (Daphne is an example) and 'daphne' is found within the answer.
'party' could be 'do' (do can informally mean a party) and 'do' is found within the answer.
'character' could be 'rho' (rho is a kind of letter of the alphabet) and 'rho' is located in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
'from' acts as a link.
Can you help me to learn more?