Cryptic crossword clue
Spain plays no part in silly quarrel about oxygen for whale 7

The most common and most likely answer to this crossword clue is the 8 plus 1 letter word RORQUAL} –

R
O
R
Q
U
A
L
}
â
€
“

Buddy explains!

The straight part
We know that "whale" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case whale = rorqual} –.
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 RORQUAL} – mean?

RORQUAL} – noun
  1. Any whale of family Balaenopteridae, with longitudinal skin folds running from below the mouth to the navel, allowing the capacity of the mouth to expand greatly when feeding.

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