Irish port God heard about (8)
I believe the answer is:
drogheda
'irish port' is the definition.
(Drogheda is a port in Ireland)
'god heard about' is the wordplay.
'about' indicates anagramming the letters.
'god'+'heard'='godheard'
'godheard' anagrammed gives 'DROGHEDA'.
(Other definitions for drogheda that I've seen before include "Louth town, Boyne port" , "Irish town" , "Irish port" , "somewhere in Ireland" , "Goad herd into Louth town" .)