Buffalo Bill tours the Middle East for fun (6)
I believe the answer is:
comedy
'fun' is the definition.
(I know that comedy is a type of fun)
'buffalo bill tours the middle east' is the wordplay.
'buffalo bill' becomes 'cody' (I've seen this in another clue).
'tours' means one lot of letters goes inside another (to tour can mean to go around).
'the middle east' becomes 'me' (abbreviation for Middle East).
'cody' placed around 'me' is 'COMEDY'.
'for' is the link.
(Other definitions for comedy that I've seen before include "fun" , "Shakespeare : 'The . . . . . . of Errors'" , "Funny and/or happy play" , "Form of light entertainment" , "satirical play" .)