Over and above former beach in Ireland (5)
I believe the answer is:
extra
'over and above' is the definition.
(I've seen this before)
'former beach in ireland' is the wordplay.
I cannot really understand how this works, but
'former' could be 'ex' (prefix meaning former or onetime) and 'ex' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for extra that I've seen before include "E.g. wide in cricket" , "score (not a hit)" , "Actor's part" , "Possibly a bad ball" , "on top" .)