Attention! Bishop turning up in Glasgow bank (4)
I believe the answer is:
brae
'glasgow bank' is the definition.
'brae' can be an answer for 'bank' (I've seen this before). I'm not sure about the 'glasgow' bit.
'attention bishop turning up' is the wordplay.
'attention' becomes 'ear' (have the ear of someone is to have their attention).
'bishop' becomes 'b' (abbreviation used in chess).
'turning up' says the letters should be written backwards.
'ear'+'b'='earb'
'earb' reversed gives 'BRAE'.
'in' is the link.
Can you help me to learn more?
(Other definitions for brae that I've seen before include "Steep bank or hillside" , "Bank of Scotland" , "Slope on hill or in glen" , "Scottish hill slope" , "Bare on Scottish hillside" .)