Cryptic crossword clue
Conceding defeat, sailor goes over to be in Paris 10

The most common and most likely answer to this crossword clue is the 10 letter word RETREATING

I've seen this crossword clue in The Guardian
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Buddy explains!

The straight part
We know that "Conceding defeat" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case conceding defeat = retreating.
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 RETREATING mean?

RETREATING verb
  1. To treat or deal with (a topic) again or differently.
  2. To apply treatment to (an injury, a surface, etc.) again
RETREATING verb
  1. To withdraw from a position, go back.
  2. (of a glacier) To shrink back due to generally warmer temperatures.
  3. To slope back.
RETREATING noun
  1. The act of moving back from something; a retreat.

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