Some from Enniskillen allegedly turning up in Welsh town (8)
I believe the answer is:
llanelli
'welsh town' is the definition.
(I've seen this before)
'some from enniskillen allegedly turning up' is the wordplay.
'some from' indicates the answer is hidden within the clue.
'turning up' is a reversal indicator.
'illenall' can be found hidden inside 'enniskillen allegedly'.
'illenall' back-to-front is 'LLANELLI'.
'in' acts as a link.
(Other definitions for llanelli that I've seen before include "Town NW of Swansea" , "Welsh community" , "Welsh place" , "Port in Dyfed" , "Welsh town" .)