Natural weapons (the highest level of armament?) (5)
I believe the answer is:
teeth
'level of armament?' is the definition.
Although both the answer and definition are verbs in their base form, I don't see how they can define each other.
'natural weapons the highest' is the wordplay.
'natural weapons' becomes 'te' (I am not sure about this - if you are sure you should believe this answer much more).
'highest' indicates anagramming the letters (I've seen 'high' mean this (can mean drunk or on drugs and hence disordered)).
'the' anagrammed gives 'eth'.
'te'+'eth'='TEETH'
Can you help me to learn more?
(Other definitions for teeth that I've seen before include "Structures in the jaw" , "Power to enforce" , "Those of wisdom" , "Eye, back, baby, gold or false, for example" , "Gearwheel cogs" .)