Corrupt board after business in Spanish city (7)
I believe the answer is:
cordoba
'spanish city' is the definition.
(I've seen this in another clue)
'corrupt board after business' is the wordplay.
'corrupt' indicates anagramming the letters (a corrupted form).
'after' means one lot of letters go next to another.
'business' becomes 'co' (short for company).
'board' is an anagram of 'rdoba'.
'rdoba' after 'co' is 'CORDOBA'.
'in' acts as a link.
(Other definitions for cordoba that I've seen before include "Moorish city" , "ready for Nicaragua?" , "spending unit in Nicaragua" , "City in southern Spain and Spanish explorer" , "Spanish destination" .)