Just fix what odd characters missed (5)
I believe the answer is:
right
'characters missed' is the definition.
I can't judge whether this defines the answer.
'just fix what odd' is the wordplay.
'just fix' becomes 'rig' (rig can mean to fix or manipulate. I am not sure about the 'just' bit.).
'odd' means one should take alternating letters.
The alternating letters of 'what' are 'ht'.
'rig'+'ht'='RIGHT'
Can you help me to learn more?
(Other definitions for right that I've seen before include "Complete" , "Valid" , "Conservative - correct" , "Accurate" , "Properly" .)