Raised standard that is right for such a weapon (6)
I believe the answer is:
rapier
'such a weapon' is the definition.
(rapier is a kind of weapon)
'raised standard that is right' is the wordplay.
'raised' is a reversal indicator.
'standard' becomes 'par' (I've seen this before).
'that is' becomes 'ie' ('i.e.' can be a synonym of 'that is').
'right' becomes 'r' (common abbreviation).
'par' written backwards gives 'rap'.
'rap'+'ie'+'r'='RAPIER'
'for' is the link.
(Other definitions for rapier that I've seen before include "Long slender sword" , "Fine-bladed sword" , "A fencing sword for repair" , "Thrusting weapon" , "Sword for thrusting" .)