It doesn’t deserve full belief! (3)

I believe the answer is:

lie

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'it doesn't deserve full' is the definition.
The definition suggests a singular noun which matches the answer.

'belief' is the wordplay.
'LIE' is hidden within the letters.
However, I'm not sure how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for lie that I've seen before include "Tell porkies" , "Commit perjury" , "Mistruth" , "Fib in alienation" , "Perjure" .)

I've seen this clue in the Evening Standard.

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