Reunite scattered staff (7)
I believe the answer is:
retinue
'staff' is the definition.
(I've seen this before)
'reunite scattered' is the wordplay.
'scattered' is an anagram indicator.
'reunite' is an anagram of 'RETINUE'.
(Other definitions for retinue that I've seen before include "Train, escort" , "VIP's attendants" , "Attendants, followers" , "Cortege" , "Train; attendants" .)