"Fear of Flying" writer Jong (5)
I believe the answer is:
'fear of flying writer jong' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for erica that I've seen before include "Moorland plant, girl's name" , "hardy shrub" , "Girl's name - heather" , "Girl's name - I care (anag)" , "Female" .)