Cryptic crossword clue
Queen to withdraw for this reason? 4

The most common and most likely answer to this crossword clue is the 4 letter word ERGO

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


Buddy explains!

The straight part
We know that "for this reason?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case for this reason? = ergo.
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 ERGO mean?

ERGO adverb
  1. Consequently, therefore, thus.
ERGO conjunction
  1. Therefore (especially in syllogisms).
ERGO noun
  1. An ergometer (rowing machine).

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