Model I parcel up (7)
I believe the answer is:
replica
'model' is the definition.
(I've seen this before)
'i parcel up' is the wordplay.
'up' is an anagram indicator.
'i'+'parcel'='iparcel'
'iparcel' with letters rearranged gives 'REPLICA'.
(Other definitions for replica that I've seen before include "Reproduction, exact copy" , "Perfect copy" , "Parcel I made into an exact copy" , "Parcel I used to contain exact copy" , "Facsimile" .)