Remarkable things of prophetic significance seen by female in Pennsylvania (9)
I believe the answer is:
phenomena
'remarkable things' is the definition.
(I've seen this before)
'prophetic significance seen by female in pennsylvania' is the wordplay.
'prophetic significance' becomes 'omen' (I've seen this before).
'seen by' is a charade indicator (letters next to each other).
'female' becomes 'hen' (hen is a kind of female).
'in' means one lot of letters goes inside another.
'pennsylvania' becomes 'pa'.
'omen' put after 'hen' is 'henomen'.
'henomen' inserted within 'pa' is 'PHENOMENA'.
'of' is the link.
(Other definitions for phenomena that I've seen before include "extraordinary things" , "strange doings!" , "facts" , "Wonderful things" , "Things sensed" .)