Note clear principle (5)

I believe the answer is:

tenet

'principle' is the definition.
(a tenet is a principle or value)

'note clear' is the wordplay.
'note' becomes 'te' (musical note).
'clear' becomes 'net' (as in net profit).
'te'+'net'='TENET'

(Other definitions for tenet that I've seen before include "A religious doctrine proclaimed as true without proof" , "Doctrine, dogma, belief" , "It's believed" , "Belief or doctrine - a palindrome" , "Doctrine; principle held" .)

I've seen this clue in The Sun.

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