Cryptic crossword clue
Fit ending for discourse – witty remark 5

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

I've seen this crossword clue in Financial Times
E
Q
U
I
P

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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 EQUIP mean?

EQUIP verb
  1. To supply with something necessary in order to carry out a specific action or task; to provide with (e.g. weapons, provisions, munitions, rigging)
  2. To dress up; to array; to clothe.
  3. To prepare (someone) with a skill.
  4. To equip oneself with (an item).

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