Interaction with CPS that's involved Horowitz? (7,7)
I believe the answer is:
concert pianist
'horowitz?' is the definition.
Both the answer and definition are singular nouns.
Maybe there's a link between them I don't understand?
'interaction with cps that's involved' is the wordplay.
'with' says to put letters next to each other.
'that's involved' indicates an anagram (involved can mean confusing or complex).
'interaction' after 'cps' is 'cpsinteraction'.
'cpsinteraction' is an anagram of 'CONCERT PIANIST'.
Can you help me to learn more?
(Another definition for concert pianist that I've seen is " Vladimir Horowitz, perhaps - with 20a".)