The most common and most likely answer to this crossword clue is the 7 letter word BLATTER
B
L
A
T
T
E
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Buddy explains!
The straight part
We know that "Celtic’s torrent of words/football official" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case celtic’s torrent of words/football official = blatter.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 BLATTER mean?
BLATTER noun- Blather; foolish talk.
- A sound of rapid motion.
- To blather.
- To hurry or rush noisily.
- A hard battering of rain.