He kneads to use arms in a different way! (7)
I believe the answer is:
masseur
'he kneads' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'use arms in a different way' is the wordplay.
'in a different way' is an anagram indicator (letters ordered a new way).
'use'+'arms'='usearms'
'usearms' with letters rearranged gives 'MASSEUR'.
'to' is the link.
Can you help me to learn more?
(Other definitions for masseur that I've seen before include "rubber found" , "One easing tension" , "One kneading joints" , "rubber needed" , "Professional rubber?" .)