It's back to front in remarkably cheap imitation (8)
I believe the answer is:
pastiche
'imitation' is the definition.
(thesaurus)
'it's back to front in remarkably cheap' is the wordplay.
'back to front' is a reversal indicator.
'in' is an insertion indicator.
'remarkably' indicates an anagram (I've seen this in other clues).
'its' back-to-front is 'sti'.
'cheap' anagrammed gives 'pache'.
'sti' placed inside 'pache' is 'PASTICHE'.
(Other definitions for pastiche that I've seen before include "Imitation of another art style" , "Norse thunder god" , "Work of art that imitates the style of other works" , "Artistic blend; medley" , "Work of art that imitates the style of a previous work" .)