The most common and most likely answer to this crossword clue is the 8 letter word SALVAGES
I've seen this crossword clue in The Daily Telegraph
S
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Buddy explains!
The straight part
We know that "Rescues" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rescues = salvages.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.
What does SALVAGES mean?
SALVAGES noun- The rescue of a ship, its crew or its cargo from a hazardous situation.
- The ship, crew or cargo so rescued.
- The compensation paid to the rescuers.
- The money from the sale of rescued goods.
- The similar rescue of property liable to loss; the property so rescued.
- (sometimes attributive) Anything put to good use that would otherwise have been wasted, such as damaged goods.
- (Philippine English) summary execution, extrajudicial killing
- An uncivilized or feral human; a barbarian.
- A defiant person.