Land around a Pacific port (7)
I believe the answer is:
seattle
'pacific port' is the definition.
(I've seen this before)
'land around a' is the wordplay.
'land' becomes 'settle' (I've seen this before).
'around' indicates putting letters inside.
'settle' enclosing 'a' is 'SEATTLE'.
(Other definitions for seattle that I've seen before include "city in north-west America" , "Washington port" , "US Pacific seaport" , "Let's eat at this US city" , "US West coast port" .)