Second story, no longer new (5)

I believe the answer is:

stale

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'no longer new' is the definition.
I can't tell whether this defines the answer.

'second story' is the wordplay.
'second' becomes 's' (common abbreviation).
'story' becomes 'tale' (synonyms).
's'+'tale'='STALE'

Can you help me to learn more?

(Other definitions for stale that I've seen before include "Old; musty" , "Mouldy or hackneyed" , "Boring" , "no longer bearing interest?" , "Not fresh, being least" .)

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