Force completed reorganisation (8)
I believe the answer is:
makeover
'reorganisation' is the definition.
'force completed' is the wordplay.
'force' becomes 'make' (to make someone do something is to force them).
'completed' becomes 'over' (synonyms).
'make'+'over'='MAKEOVER'
(Other definitions for makeover that I've seen before include "Reconstruction" , "cosmetic treatment" , "completely changing how someone looks" .)