I need help with cryptic clues on irish saint names?

1.this saint delivers when you need to burn a fire


2.sometimes eileen might feel like doing this to the big man


3.our mythical giant is attached to another big man.


4.rita lost her head from the beginning.


5.this saint surely has the x factor.

I need help with cryptic clues on irish saint names?
1. The St. Croix corn stove (possibly but I'm not sure)








4. St. Rita of Cascia http://ritacascia.blogspot.com/





The other ones I'm not sure about. I'll keep looking though
Reply:I can only answer no. 5. It's St. Brigid