More unpleasant eccentric earns it (7)
I believe the answer is:
nastier
'more unpleasant' is the definition.
('nasty' is associated in meaning with 'unpleasant')
'eccentric earns it' is the wordplay.
'eccentric' is an anagram indicator.
'earns'+'it'='earnsit'
'earnsit' is an anagram of 'NASTIER'.
(Other definitions for nastier that I've seen before include "more awkward" , "More disgusting" , "More unpleasant or distasteful" , "Less pleasant" , "More damaging" .)