There's more to former beach in Ireland (5)
I believe the answer is:
extra
'there's more' is the definition.
(I've seen this before)
'former beach in ireland' is the wordplay.
I cannot really see how this works, but
'former' could be 'ex' and 'ex' is present in the answer.
This explanation may well be incorrect...
'to' acts as a link.
Can you help me to learn more?
(Other definitions for extra that I've seen before include "Minor actors in crowd scenes" , "One in crowd scene" , "Run scored but not off the bat" , "Left over" , "More than usual" .)