Points to weight joining energy together (2,5)
I believe the answer is:
en masse
'together' is the definition.
(French phrase meaning all together)
'points to weight joining energy' is the wordplay.
'points' becomes 'en' (compass points east and north).
'to weight joining' becomes 'mass' (I can't justify this - if you can you should give a lot more credence to this answer).
'energy' becomes 'e' (physics symbol as in E=mca).
'en'+'mass'+'e'='EN MASSE'
Can you help me to learn more?
(Other definitions for en masse that I've seen before include "All together (Fr.)" , "in concert" , "As a body (Fr.)" , "In force" , "All together as a group" .)