*@!#* British former Prime Minister turned up! (5)
I believe the answer is:
bleep
'british' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'former prime minister turned up' is the wordplay.
'former' becomes 'b' (I am not sure about this - if you are sure you should believe this answer much more).
'prime minister' becomes 'peel' (Robert Peel).
'turned up' shows that the letters should be reversed in order.
'peel' back-to-front is 'leep'.
'b'+'leep'='BLEEP'
Can you help me to learn more?
(Other definitions for bleep that I've seen before include "covers swearing" , "Electronic signal calling a person" , "Electronic noise signal" , "High-pitched electrical signal" , "High-pitched signal from device - you're needed" .)