The most common and most likely answer to this crossword clue is the 7 letter word RANGERS
I've seen this crossword clue in The Daily Telegraph
R
A
N
G
E
R
S
More clues leading to the result RANGERS
- Rook greatly annoys park attendants
- Scottish team of park keepers?
- Roy’s header really annoys 3
- Team runs to Plantagenet stronghold
- Forest guides keep rook within limits
- Scottish squad of soldiers?
- Ref initially enrages football team
- Park officials‘ initial response is very annoying
- Resistance infuriates footballers
- Referee initially upsets Scottish team
Buddy explains!

The straight part
We know that "football team" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case football team = rangers.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 RANGERS mean?
RANGERS noun- One who ranges; a rover.
- A keeper, guardian, or soldier who ranges over a region (generally of wilderness) to protect the area or enforce the law.
- That which separates or arranges; a sieve.
- A dog that beats the ground in search of game.
- In some modern armies, an elite soldier, similar to special forces but often operating in larger units.
- A warrior character, often with wilderness and stealth skill, who typically travels the countryside.
- A character skilled in the use of ranged weapons.