Disparage line in remix of Let It Be (8)
I believe the answer is:
belittle
'disparage' is the definition.
(synonyms)
'line in remix of let it be' is the wordplay.
'line' becomes 'l' (used when specifying particular lines from a poem).
'in' is an insertion indicator.
'remix of' indicates anagramming the letters (letters are mixed in a different way).
'let'+'it'+'be'='letitbe'
'letitbe' with letters rearranged gives 'belitte'.
'l' put within 'belitte' is 'BELITTLE'.
(Other definitions for belittle that I've seen before include "abuse" , "Denigrate, disparage" , "Sell short" , "Disparage, run down" , "Make to seem unimportant" .)