Ban consequently restricts doctor back in Chattanooga (7)
I believe the answer is:
embargo
'ban' is the definition.
(I've seen this before)
'consequently restricts doctor back in chattanooga' is the wordplay.
'consequently' becomes 'ergo' (synonyms).
'restricts' indicates putting letters inside.
'doctor' becomes 'MB' (Bachelor of Medicine).
'back in' suggests the final letters (the 'back' of the word).
The final letter of 'chattanooga' is 'a'.
'mb'+'a'='mba'
'ergo' enclosing 'mba' is 'EMBARGO'.
(Other definitions for embargo that I've seen before include "Boycott" , "Legal restraint" , "Restraint - prohibition" , "Proscribe, ban" , "Official prohibition as on trade" .)