Noble heart less serious for contemptible person (8)

I believe the answer is:

blighter

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'contemptible person' is the definition.
'blighter' can be an answer for 'person' (blighter is a kind of person). I'm unsure of the 'contemptible' bit.

'noble heart less serious' is the wordplay.
'heart' indicates the central letters.
'less serious' becomes 'lighter' ('light' can be the opposite of 'serious' so perhaps 'lighter' is reasonable for 'less serious').
The centre of 'noble' is 'b'.
'b'+'lighter'='BLIGHTER'

'for' acts as a link.

Can you help me to learn more?

(Other definitions for blighter that I've seen before include "Wretch" , "Cad" , "Annoying person (slang)" , "Villain" , "irritating guy" .)

I've seen this clue in The Daily Express.

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