Parody of king in pose (4)
I believe the answer is:
skit
'parody' is the definition.
(I've seen this before)
'king in pose' is the wordplay.
'king' becomes 'k'.
'in' means one lot of letters goes inside another.
'pose' becomes 'sit' (sitting is a kind of posing).
'k' put inside 'sit' is 'SKIT'.
'of' acts as a link.
(Other definitions for skit that I've seen before include "Hoax; satire" , "Comic routine" , "that may be produced by 19 [PARODIST]" , "Short comic piece" , "Short humorous act" .)