The most common and most likely answer to this crossword clue is the 7 letter word LEGHORN
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More clues leading to the result LEGHORN
Buddy explains!
The straight part
We know that "Cap" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cap = leghorn.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 LEGHORN mean?
LEGHORN noun- A type of dried plaited wheat straw fabric.
- A hat made from that fabric.
- A small white chicken of a hardy breed.