Cryptic crossword clue
Sniggers as dubiously stricken opponent finally quits 7

The most common and most likely answer to this crossword clue is the 7 letter word NICKERS

I've seen this crossword clue in Independent
N
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K
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S

Buddy explains!

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 NICKERS mean?

NICKERS verb
  1. To make a soft neighing sound characteristic of a horse.
  2. To produce a snigger or suppressed laugh.

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