Stuff about Northern Ireland by posh nutcase (7)
I believe the answer is:
cranium
'nutcase' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'stuff about northern ireland by posh' is the wordplay.
'stuff' becomes 'cram' (cramming is a kind of stuffing**).
'about' means one lot of letters goes inside another.
'northern ireland' becomes 'ni'.
'by' means one lot of letters go next to another.
'posh' becomes 'u' (abbreviation for upper-class - opposite to non-u).
'ni'+'u'='niu'
'cram' placed around 'niu' is 'CRANIUM'.
Can you help me to learn more?
(Other definitions for cranium that I've seen before include "hard case" , "The skull, bone enclosing brain" , "Skull, bones enclosing brain" , "The skull, major head bone" , "Part of the skull" .)