Party in Ireland is corrupt (5)
I believe the answer is:
disco
'party' is the definition.
(I've seen this before)
'in ireland is corrupt' is the wordplay.
'in' says the answer is hidden in the clue.
'DISCO' is hidden in the letters of 'ireland is corrupt'.
(Other definitions for disco that I've seen before include "Style of music/dancing" , "Party with music" , "Musical entertainment" , "Thumping music" , "Dancing venue" .)