Protects pupil going to HSE for first aid? And, that's between us and our neighbours! (5,3)
I believe the answer is:
irish sea
'that's between us and our neighbours' is the definition.
I can't tell whether this definition defines the answer.
'protects pupil going to hse for first aid?' is the wordplay.
'protects pupil' becomes 'iris' (I can't explain this - if you can you should give a lot more credence to this answer).
'going to' is a charade indicator (letters next to each other).
'for' says to put letters next to each other.
'first' says to take the initial letters.
The initial letter of 'aid' is 'a'.
'iris'+'hse'+'a'='IRISH SEA'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for irish sea that I've seen before include "Water to west of Britain" , "Waters around IOM" , "Waters separating Ireland from England and Wales" , "Water west of Wales" , "Large quantity of water" .)