Deviously cover up a bold and cynical show of affection (8-4)

I believe the answer is:
cupboard-love
'cynical show of affection' is the definition.
I can't tell whether this definition defines the answer.
'deviously cover up a bold' is the wordplay.
'deviously' indicates an anagram (I've seen this in other clues).
'cover'+'up'+'a'+'bold'='coverupabold'
'coverupabold' with letters rearranged gives 'CUPBOARD-LOVE'.
'and' acts as a link.
Can you help me to learn more?
I've seen this clue in The Independent.
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