Dissident at this time attracting limitless criticism (7)
I believe the answer is:
heretic
'dissident' is the definition.
(I know that heretic is a type of nonconformist)
'this time attracting limitless criticism' is the wordplay.
'this time' becomes 'here' (I can't justify this - if you can you should believe this answer much more).
'attracting' says to put letters next to each other.
'limitless' indicates the central letters.
The central letters of 'criticism' are 'tic'.
'here'+'tic'='HERETIC'
'at' acts as a link.
Can you help me to learn more?
(Other definitions for heretic that I've seen before include "Person in conflict with Roman Catholic dogma" , "Cheer it (anag.)" , "One whose opinions are contrary to accepted religious beliefs" , "One with unorthodox beliefs" , "Unbeliever" .)