A saint seemingly foreign to Ian (5)
I believe the answer is:
alban
'a saint' is the definition.
(saint alban)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for alban that I've seen before include "Saint who was first British Christian martyr" , "Hertfordshire saint" , "-- Berg, composer" , "Saintly type" , "First English Christian martyr" .)