Rishi cannot yet dodge around this subject (7,7)
I believe the answer is:
ancient history
'this subject' is the definition.
The definition suggests a singular noun which matches the answer.
'rishi cannot yet dodge' is the wordplay.
'dodge' indicates an anagram (I've seen 'dodged' mean this).
'rishi'+'cannot'+'yet'='rishicannotyet'
'rishicannotyet' anagrammed gives 'ANCIENT HISTORY'.
'around' is the link.
Can you help me to learn more?
(Other definitions for ancient history that I've seen before include "that happened long ago" , "The period of Greece and Rome" , "There's something very familiar" , "something obtained from old documents?" , "accounts of Roman empire" .)