Pot on for cooking's covered right now! (6)
I believe the answer is:
pronto
'now' is the definition.
(I've seen this in another clue)
'pot on for cooking's covered right' is the wordplay.
'for cooking' is an anagram indicator (letters prepared or cooked into a new form).
'covered' means one lot of letters goes inside another.
'right' becomes 'r' (abbreviation).
'pot'+'on'='poton'
'poton' with letters rearranged gives 'ponto'.
'ponto' enclosing 'r' is 'PRONTO'.
(Other definitions for pronto that I've seen before include "Right now, immediately" , "Quickly, promptly" , "Double quick!" , "Quick as you can, amigo" , "Right away, quickly" .)