The most common and most likely answer to this crossword clue is the 6 letter word MALAGA
M
A
L
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G
A
More clues leading to the result MALAGA
- Spanish city festival recalled up in Massachusetts
- Old lady sheltering a convict in Continental resort
- A festival miles back in Spanish city
- Hearts of dames greatly swelled by silver – Casanova’s last resort
- Mum holds festivity back requiring sweet wine
- Mum holds festive occasion back for wine
- MALAGA
- Mass celebration around a Mediterranean resort
- Delay entering self-help group following month in Spain
- Master criminal having a drink
Buddy explains!

The straight part
We know that "sweet wine" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sweet wine = malaga.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.