Soldier, as a result, left umbrella (7)
I believe the answer is:
parasol
'umbrella' is the definition.
(I've seen this before)
'soldier as a result left' is the wordplay.
'soldier' becomes 'para' (para is a kind of soldier**).
'as a result' becomes 'so'.
'left' becomes 'l' (common abbreviation).
'para'+'so'+'l'='PARASOL'
(Other definitions for parasol that I've seen before include "Light umbrella to ward off the sun" , "Protection from light" , "Small umberella for sun" , "Protection from sun" , "mushroom" .)