Clackmannanshire town (5)
I believe the answer is:
alloa
'clackmannanshire town' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for alloa that I've seen before include "Athletic club" , "Town on Firth of Forth" , "A few thousand Scots" , "Clackmannanshire town" , "Town built" .)