Choice way to take sustenance (1,2,5)
I believe the answer is:
a la carte
'choice' is the definition.
Both the definition and answer are adjectives. Perhaps they are linked in a way I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for a la carte that I've seen before include "Menu of individual dishes with separate prices" , "Menu with differently priced choices" , "Menu with individually priced dishes" , "'Menu with individually priced items (1,2,5)'" , "way of ordering things" .)