Hope to stay limber - using this? (10)
I believe the answer is:
osteopathy
'this?' is the definition.
The definition suggests a singular noun which matches the answer.
'hope to stay limber' is the wordplay.
'hope to stay' anagrams to 'OSTEOPATHY'.
However, I am not clear how this is indicated.
'using' acts as a link.
Can you help me to learn more?
(Other definitions for osteopathy that I've seen before include "treatment" , "form of therapy" .)