Cream of soldiers inside it, not worried (8)
I believe the answer is:
ointment
'cream' is the definition.
(I know that cream can be written as ointment)
'soldiers inside it not worried' is the wordplay.
'soldiers' becomes 'men' (men can mean a group of soldiers).
'inside' indicates putting letters inside.
'worried' is an anagram indicator (worry can mean to interfere with or disturb).
'it'+'not'='itnot'
'itnot' anagrammed gives 'ointt'.
'men' placed within 'ointt' is 'OINTMENT'.
'of' acts as a link.
(Other definitions for ointment that I've seen before include "Salve or skin paste" , "Soothing unguent" , "Medicinal application" , "Healing or cosmetic preparation" , "Medicinal rub" .)