In Irish county, see Scottish cow, perhaps (8)
I believe the answer is:
galloway
'scottish cow perhaps' is the definition.
(Galloway is a Scottish breed of cattle)
'in irish county see' is the wordplay.
'in' is an insertion indicator.
'irish county' becomes 'galway' (county of Ireland).
'see' becomes 'lo' ('lo' is an archaic exclamation meaning 'look!').
'galway' going around 'lo' is 'GALLOWAY'.
(Other definitions for galloway that I've seen before include "Respect MP" , "farm animal" , "Scots breed of cattle" , "Area of southwest Scotland" , "Scots beef" .)