Georgian city in the place of Los Angeles welcomes worker, say (7)
I believe the answer is:
atlanta
'georgian city' is the definition.
(city in the US state of Georgia)
'in the place of los angeles welcomes worker say' is the wordplay.
'in the place of' becomes 'at'.
'los angeles' becomes 'la'.
'welcomes' means one lot of letters goes inside another (in sense of 'invites in').
'worker say' becomes 'ant' (worker is a type of ant).
'la' placed around 'ant' is 'lanta'.
'at'+'lanta'='ATLANTA'
(Other definitions for atlanta that I've seen before include "Site of 1996 Olympics" , "Nineteen ninety six Olympic city" , "southern US city" , "Maiden desperate to marry abandons a" , "American city" .)