Cryptic crossword clue
Drunk diner, one moving quickly around, becoming more affectionate? 10

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

I've seen this crossword clue in The Daily Telegraph
F
R
I
E
N
D
L
I
E
R

Buddy explains!

The straight part
We know that "more affectionate" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case more affectionate = friendlier.
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 FRIENDLIER mean?

FRIENDLIER adjective
  1. Generally warm, approachable and easy to relate with in character.
  2. Inviting, characteristic of friendliness.
  3. Having an easy or accepting relationship with something.
  4. Without any hostility.
  5. Promoting the good of any person; favourable; propitious.
  6. Of or pertaining to friendlies (friendly noun sense 2, below). Also applied to other bipolar confrontations, such as team sports
  7. Being or relating to two or more natural numbers with a common abundancy.
  8. (in compounds) Compatible with, or not damaging to (the compounded noun).

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