The Great Tchaikovsky, for instance? (5)
I believe the answer is:
'instance?' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'the great tchaikovsky' is the wordplay.
I cannot quite see how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is located in the answer.
The remaining letters 'peer' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'for' is the link.
Can you help me to learn more?
(Other definitions for peter that I've seen before include "- Sellers, twentieth century English comedian" , "Disciple" , "Cephas" , "Saint at the Pearly Gates?" , "Rock-like apostle" .)