Cryptic crossword clue
Circuit of Doone country, missing odd parts 3

The most common and most likely answer to this crossword clue is the 3 letter word XOR

X
O
R


Buddy explains!

The straight part
We know that "Circuit" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case circuit = xor.
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 XOR mean?

XOR noun
  1. The logic function exclusive OR (as opposed to inclusive OR), whose output is true only when exactly one of its inputs is true.
XOR conjunction
  1. Or (but not both)

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