Cryptic crossword clue
Ruling concerning double gin cocktails

The most common and most likely answer to this crossword clue is the 8 letter word REIGNING

I've seen this crossword clue in The Guardian
R
E
I
G
N
I
N
G

Buddy explains!

The straight part
We know that "Ruling" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case ruling = reigning.
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 REIGNING mean?

REIGNING verb
  1. To exercise sovereign power, to rule as a monarch.
  2. To reign over (a country)
  3. To be the winner of the most recent iteration of a competition.
  4. To be a dominant quality of a place or situation; to prevail, predominate, rule.
REIGNING adjective
  1. Currently ruling or holding a position.

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