Guy perhaps scoffing a spicy dish (5)
I believe the answer is:
satay
'a spicy dish' is the definition.
(I've seen this before)
'guy perhaps scoffing' is the wordplay.
'guy' becomes 'ta' (I am not sure about this - if you are sure you should believe this answer much more).
'perhaps' becomes 'say'.
'scoffing' indicates putting letters inside.
'ta' going into 'say' is 'SATAY'.
Can you help me to learn more?
(Other definitions for satay that I've seen before include "Eastern skewered dish" , "Malaysian or Indonesian dish of grilled food with peanut sauce" , "foreign dish" , "Malayan dish" , "Spicy Malaysian sauce" .)