In pieces and sure to be put together somehow (7)
I believe the answer is:
asunder
'in pieces' is the definition.
(I've seen this before)
'and sure to be put together somehow' is the wordplay.
'to be put together' means one lot of letters go next to another.
'somehow' indicates anagramming the letters.
'and' after 'sure' is 'sureand'.
'sureand' is an anagram of 'ASUNDER'.
(Other definitions for asunder that I've seen before include "(Torn) apart" , "bits?" , "(Torn) into parts" , "being in two" , "Widely separated" .)