Famous aristocrat entertains part-time soldiers (7)
I believe the answer is:
notable
'famous' is the definition.
(I know that famous can be written as notable)
'aristocrat entertains part-time soldiers' is the wordplay.
'aristocrat' becomes 'Noble' (member of the nobility).
'entertains' indicates putting letters inside.
'part-time soldiers' becomes 'ta' (abbreviation for Territorial Army. I am not sure about the 'part-time' bit.).
'noble' placed around 'ta' is 'NOTABLE'.
Can you help me to learn more?
(Other definitions for notable that I've seen before include "Celebrated" , "VIP" , "Worthy of record" , "Star" , "Outstanding" .)