New, original (5)
I believe the answer is:
novel
I believe this clue is a double definition.
'new' is the first definition.
(similar in meaning)
'original' is the second definition.
(similar in meaning)
(Other definitions for novel that I've seen before include "New and intriguing" , "Of a kind not seen before" , "Scoop, say" , "piece of writing" , "Volume of prose fiction" .)