King, in some fashion, to have a cigarette (5)
I believe the answer is:
smoke
'have a cigarette' is the definition.
(I've seen this in another clue)
'king in some fashion' is the wordplay.
'king' becomes 'k' (abbreviation for king in chess).
'in' is an insertion indicator.
'fashion' indicates anagramming the letters.
'some' anagrammed gives 'smoe'.
'k' placed inside 'smoe' is 'SMOKE'.
'to' acts as a link.
(Other definitions for smoke that I've seen before include "Cure (food) - endanger health!" , "Visible vapour" , "'There's no . . . . . without fire'" , "Fume" , "Fumigate; cigarette" .)