It's the right thing in Clapton (3)
I believe the answer is:
apt
'it's the right' is the definition.
(I've seen this in another clue)
'thing in clapton' is the wordplay.
'APT' is hidden in amongst the letters.
However, I'm uncertain how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for apt that I've seen before include "Suitable or likely" , "Suitable, appropriate" , "flat" , "Tending" , "Pertinent" .)