Turning a list into new form (8)
I believe the answer is:
rotation
'turning' is the definition.
(I know that rotation is a type of turning)
'a list into new form' is the wordplay.
'a list' becomes 'rota' (rota is a kind of list).
'new form' is an anagram indicator (I've seen 'new form of' mean this).
'into' is an anagram of 'tion'.
'rota'+'tion'='ROTATION'
(Other definitions for rotation that I've seen before include "Action of turning" , "Turning motion" , "Revolutionary movement" , "Spinning motion or cyclic changes as of crops" , "Out of control" .)