Experts incorporating method in brief jokes (3-6)
I believe the answer is:
one-liners
'brief jokes' is the definition.
(I've seen this in another clue)
'experts incorporating method' is the wordplay.
'experts' becomes 'oners' (I've seen this in another clue).
'incorporating' indicates putting letters inside.
'method' becomes 'line' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'oners' enclosing 'line' is 'ONE-LINERS'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for one-liners that I've seen before include "Short gags" , "Quips" .)