Cryptic crossword clue
Ugly expressions from sailors captured by foreign troops 5

The most common and most likely answer to this crossword clue is the 5 letter word GIRNS

G
I
R
N
S


Buddy explains!

The straight part
We know that "Ugly expressions" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case ugly expressions = girns.
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 GIRNS mean?

GIRNS verb
  1. To grimace; to snarl.
  2. To whinge, moan, complain.
  3. To make elaborate unnatural and distorted faces as a form of amusement or in a girning competition.

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