Sneaky-sounding attempt to see Irish county (5)
I believe the answer is:
sligo
'irish county' is the definition.
(I've seen this in another clue)
'sneaky-sounding attempt' is the wordplay.
'sneaky' becomes 'sly' (I've seen this in another clue).
'sounding' indicates a 'sounds like' (homophone) clue.
'attempt' becomes 'go' (go is a kind of attempt).
'sly' is a homophone of 'sli'.
'sli'+'go'='SLIGO'
'to see' is the link.
(Other definitions for sligo that I've seen before include "part of Ireland" , "Irish port" , "Irish county and town" , "Town in north-west Ireland" , "County of northwest Ireland" .)