Greek division with gunners replicated spirit (8)
I believe the answer is:
demerara
'spirit' is the definition.
(I know that demerara is a type of rum)
'greek division with gunners replicated' is the wordplay.
'greek division' becomes 'deme' (political division in ancient Greece).
'with' means one lot of letters go next to another.
'gunners' becomes 'RA' (Royal Artillery).
'replicated' indicates the doubling of some letters.
'ra' doubled is 'rara'.
'deme'+'rara'='DEMERARA'
(Other definitions for demerara that I've seen before include "sugar - and alcohol" , "Rum" , "South American river - sugar" , "Light brown cane sugar" , "Source of sweetness" .)