Squeezes it into the compositions (8)
I believe the answer is:
writings
'the compositions' is the definition.
('writing' can be a synonym of 'composition')
'squeezes it into' is the wordplay.
'squeezes' becomes 'wrings' ('wring' can be a synonym of 'squeeze'**).
'into' is an insertion indicator.
'wrings' placed around 'it' is 'WRITINGS'.
(Other definitions for writings that I've seen before include "literature" , "Literary compositions" , "literary works" .)