Lent nectarine out for anniversary (13)

I believe the answer is:

tercentennial

'for anniversary' is the definition.
(tercentennial is a kind of anniversary)

'lent nectarine out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'lent'+'nectarine'='lentnectarine'
'lentnectarine' anagrammed gives 'TERCENTENNIAL'.

(Another definition for tercentennial that I've seen is " Three-hundredth anniversary".)

I've seen this clue in The Daily Express.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.