Some music in a pub's turned up, creating alarm (5)
I believe the answer is:
panic
'alarm' is the definition.
(thesaurus)
'some music in a pub's turned up' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'turned up' says the letters should be written in reverse.
'cinap' is hidden within 'music in a pubs'.
'cinap' in reverse letter order is 'PANIC'.
'creating' is the link.
(Other definitions for panic that I've seen before include "Grass" , "Uncontrollable terror, infectious fear" , "Sudden extreme anxiety" , "Frantic fright" , "general alarm" .)