Yes, figure protecting it makes sense (8)
I believe the answer is:
eyesight
'yes' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'figure protecting it makes sense' is the wordplay.
'figure' becomes 'eight' (I've seen this before).
'protecting' indicates putting letters inside.
'it makes sense' becomes 'yes' (I can't justify this - if you can you should give a lot more credence to this answer).
'eight' placed around 'yes' is 'EYESIGHT'.
Can you help me to learn more?
(Other definitions for eyesight that I've seen before include "What's needed to see" , "Purpose of certain organs" , "View" , "Power of seeing" , "Showing sense" .)