Derided (6)
'derided' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for mocked that I've seen before include "Taunted, derided" , "made fun of" , "Scorned" , "Derided, scoffed at" , "Imitated with derision" .)
(Other definitions for ridiculed that I've seen before include "Queered" , "Mocked" , "Scorned" , "Made fun of" , "Made mockery of" .)