Saving for growth (6)
I believe the answer is:
thrift
I believe this is a double definition.
'saving' is the first definition.
(I've seen this before)
'growth' is the second definition.
(I've seen this before)
'for' acts as a link.
(Other definitions for thrift that I've seen before include "Maritime growth" , "Being frugal" , "plants from cliffs by sea" , "Prudence in handling money" , "Careful management of money" .)