Paul Anka hit (5)
I believe the answer is:
'paul anka hit' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for diana that I've seen before include "female" , "MONKEY" , "Roman goddess equating to Artemis" , "Roman goddess of the hunt, or tragic English princess" , "Girl's name; goddess" .)