Cryptic crossword clue
Old king left rubbish 5

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

I've seen this crossword clue in Financial Times
O
F
F
A
L


Buddy explains!

The straight part
We know that "rubbish" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rubbish = offal.
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 OFFAL mean?

OFFAL noun
  1. The internal organs of an animal, used as animal food.
  2. A by-product of the grain milling process, which may include bran, husks, etc.
  3. A dead body; carrion.
  4. That which is thrown away as worthless or unfit for use; refuse; rubbish.

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