Infatuation about Rector, one in church area (6)
I believe the answer is:
parish
'church area' is the definition.
'parish' can be an answer for 'area' (I have seen 'Ecclesiastical area' mean 'parish' so perhaps 'area' could also mean 'parish'). I am not certain of the 'church' bit.
'infatuation about rector one' is the wordplay.
'infatuation' becomes 'pash' (I can't justify this - if you can you should give a lot more credence to this answer).
'about' indicates putting letters inside.
'rector' becomes 'r'.
'one' becomes 'i' (Roman numeral).
'r'+'i'='ri'
'pash' enclosing 'ri' is 'PARISH'.
'in' is the link.
Can you help me to learn more?
(Other definitions for parish that I've seen before include "Local church community" , "Kind of 2 down - has rip (anag)" , "In Louisiana a county" , "Unit of local government" , "administrative district" .)