Crossword Genius

Boast about old star (5)


I believe the answer is:


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'star' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?

'boast about old' is the wordplay.
'boast' becomes 'brag' (synonyms).
'about' is a reversal indicator.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'brag' in reverse letter order is 'garb'.

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(Other definitions for garbo that I've seen before include "Swedish film actress Greta" , "Famous film actress" , "Reclusive film star" , "Greta -, Swed. actress" , "Swedish film star who wanted to be alone" .)

I've seen this clue in The Sun.
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