Command of weapons protecting India (9)
I believe the answer is:
ordinance
'command' is the definition.
(I've seen this before)
'weapons protecting india' is the wordplay.
'weapons' becomes 'ordnance' (term for artillery).
'protecting' is an insertion indicator (inserted letters are held or protected).
'india' becomes 'i' (phonetic alphabet: alpha, bravo, charlie etc.).
'ordnance' enclosing 'i' is 'ORDINANCE'.
'of' acts as a link.
(Other definitions for ordinance that I've seen before include "planning" , "Regulation" , "Showing resolution" , "Canon" , "Command" .)