Sparing, thrifty (6)
I believe the answer is:
frugal
I believe this is a double definition.
'sparing' is the first definition.
(I know that sparing can be written as frugal)
'thrifty' is the second definition.
(similar in meaning)
(Other definitions for frugal that I've seen before include "Sparing, avoiding waste," , "Economical and careful" , "Thrifty or parsimonious" , "'Thrifty, avoiding waste (6)'" , "Thrifty - meagre" .)