### Clue: Who saw himself as winning girl over is pursuing church to become involved (9)
### Answer: NARCISSUS 
 ### Explanation: Definition: Who saw himself as winning
 [IS **placed after**(pursuing) RC(pertaining to the Roman Catholic church)] **contained in**(to become involved)**  reversal of**(over, in a down clue) SUSAN(girl's name).
Answer:  Greek mythological hunter who saw himself,his reflection in a pool, and got won over by,fell in love with it, not realising it was only an image.