Second wine down (6)

I believe the answer is:

morose

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'down' is the definition.
Both the definition and answer are adjectives. Perhaps you can see a link between them that I don't see?

'second wine' is the wordplay.
'second' becomes 'mo' (both are short periods of time).
'wine' becomes 'rose' (rose wine is a kind of wine).
'mo'+'rose'='MOROSE'

Can you help me to learn more?

(Other definitions for morose that I've seen before include "Sullen. bad-tempered" , "Melancholy" , "grouchy" , "dark" , "Sullen and brooding" .)

I've seen this clue in The Telegraph.

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