Military assistant gives help on a point (4)
I believe the answer is:
aide
'military assistant' is the definition.
(I've seen this before)
'help on a point' is the wordplay.
'help' becomes 'aid' ('aid' can be a synonym of 'help').
'on' says to put letters next to each other.
'a point' becomes 'e' (E is an example**).
'aid'+'e'='AIDE'
'gives' acts as a link.
(Other definitions for aide that I've seen before include "Officer's assistant" , "auxiliary" , "One to assist" , "Right-hand man/woman" , "Military officer acting as assistant" .)