Woman has help organising a prophetic site (6)
I believe the answer is:
delphi
'a prophetic site' is the definition.
'delphi' can be an answer for 'site' (I have seen 'classical site' mean 'delphi' so perhaps 'site' could also mean 'delphi'). I am unsure of the 'a prophetic' bit.
'woman has help organising' is the wordplay.
'woman' becomes 'Di' (short for Diana).
'has' means one lot of letters goes inside another.
'organising' indicates an anagram.
'help' is an anagram of 'elph'.
'di' going around 'elph' is 'DELPHI'.
Can you help me to learn more?
(Other definitions for delphi that I've seen before include "Site of classical Greek oracle" , "Old programming language" , "Home of the oracle on the slopes of Mount Parnassus" , "Where Apollo's most famous oracle spoke in Greece" , "Place of Greek oracle" .)