On a charge after disturbance in port (9)
I believe the answer is:
anchorage
'port' is the definition.
(thesaurus)
'on a charge after disturbance' is the wordplay.
'after' means one lot of letters go next to another.
'disturbance' indicates anagramming the letters.
'on'+'a'+'charge'='onacharge'
'onacharge' with letters rearranged gives 'ANCHORAGE'.
'in' acts as a link.
(Other definitions for anchorage that I've seen before include "road" , "Alaska's most populous city" , "Place for ship to rest securely, and Alaskan seaport" , "Largest city in Alaska" , "Roadstead" .)