The most common and most likely answer to this crossword clue is the 7 letter word ARMADAS
I've seen this crossword clue in The Guardian
A
R
M
A
D
A
S
More clues leading to the result ARMADAS
Buddy explains!
The straight part
We know that "fighting ships/fighting ships" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fighting ships/fighting ships = armadas.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 ARMADAS mean?
ARMADAS noun- A fleet of warships, especially with reference to the Spanish Armada.
- Any large army or fleet of military vessels.
- A large flock of anything.