Quality that evokes pity (6)
I believe the answer is:
pathos
'quality that evokes pity' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pathos that I've seen before include "Quality with power to provoke pity or sadness" , "Tragic air" , "feeling of pity" , "Quality of attracting pity" , "A quality that arouses pity or sorrow" .)