Star workers 'accommodating' American soldiers (7)
I believe the answer is:
antares
'star' is the definition.
(star in the constellation of Scorpius)
'workers accommodating american soldiers' is the wordplay.
'workers' becomes 'ants' (worker ants).
'accommodating' indicates putting letters inside.
'american' becomes 'a' (common abbreviation - e.g. in organisation names).
'soldiers' becomes 're' (Royal Engineers).
'a'+'re'='are'
'ants' enclosing 'are' is 'ANTARES'.
(Other definitions for antares that I've seen before include "Red supergiant star in Scorpius" , "Star reddened" , "RS [RED STAR]" , "brilliant point" , "Red supergiant star in Scorpio; nae star (anag.)" .)