Try to obtain money from romp with doctor (one's in A&E) (9)
I believe the answer is:
fundraise
'try to obtain money' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'romp with doctor one's in ae' is the wordplay.
'romp' becomes 'fun' (romp can mean something fun or light-hearted).
'with' says to put letters next to each other.
'doctor' becomes 'dr' (abbreviation).
'one's' becomes 'i's' (Roman numeral).
'in' is an insertion indicator.
'is' placed into 'ae' is 'aise'.
'fun'+'dr'+'aise'='FUNDRAISE'
'from' acts as a link.
Can you help me to learn more?
(Another definition for fundraise that I've seen is " get money for a good cause?".)