A request received by US city or state (6)
I believe the answer is:
'state' is the definition.
(Alaska is an example)
'a request received by us city' is the wordplay.
'request' becomes 'ask' ('ask' can be a synonym of 'request').
'received by' indicates putting letters inside.
'us city' becomes 'la'.
'ask' put inside 'la' is 'laska'.
'or' is the link.
(Other definitions for alaska that I've seen before include "Most northerly state of America" , "North-western US state" , "Coldest US state" , "Most northerly state of USA" , "Largest US state by area" .)