New arrangement takes blame for cover up (6)
I believe the answer is:
enwrap
'cover up' is the definition.
'enwrap' can be an answer for 'cover' (enwrapping is a kind of covering). I am not sure about the 'up' bit.
'new arrangement takes blame' is the wordplay.
'arrangement' is an anagram indicator.
'takes' is a charade indicator (letters next to each other).
'blame' becomes 'rap' (synonyms).
'new' with letters rearranged gives 'enw'.
'enw'+'rap'='ENWRAP'
'for' is the link.
Can you help me to learn more?
(Other definitions for enwrap that I've seen before include "Cover (with paper, etc)" , "put in package" , "Absorb" , "Envelop, enfold" , "Cover completely" .)