Disciplinarian seeing some point in source of military skill (8)
I believe the answer is:
martinet
'disciplinarian' is the definition.
('martinet' can be a synonym of 'disciplinarian')
'some point in source of military skill' is the wordplay.
'some point' becomes 'tine' (I've seen this in other clues**).
'in' indicates putting letters inside.
'source of' indicates taking the first letters.
'skill' becomes 'art' (I've seen this before).
The initial letter of 'military' is 'm'.
'm'+'art'='mart'
'tine' put into 'mart' is 'MARTINET'.
'seeing' is the link.
(Other definitions for martinet that I've seen before include "'Disciplinarian, exacts strict conformity to rules (8)'" , "Despot" , "Person who demands strict obedience" , "Tyrant, one who demands strict obedience" , "Rigorous figure" .)