Posed with indignation and mockery (6)
I believe the answer is:
satire
'mockery' is the definition.
(I've seen this before)
'posed with indignation' is the wordplay.
'posed' becomes 'sat' (posed or sat for an artist).
'with' says to put letters next to each other.
'indignation' becomes 'ire' (I've seen this in another clue).
'sat'+'ire'='SATIRE'
'and' acts as a link.
(Other definitions for satire that I've seen before include "Unkind piece of writing" , "Lampoon" , "Language saying one thing but implying the opposite" , "work with cutting devices?" , "sort of ironic humour" .)