The most common and most likely answer to this crossword clue is the 10 letter word GAMEKEEPER
I've seen this crossword clue in The Times
G
A
M
E
K
E
E
P
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R
More clues leading to the result GAMEKEEPER
- Willing retainer? Mellows, for example
- He stops poaching meat and fish that’s big enough
- A bit of fun at last leading to hesitation by Mellors perhaps
- Estate employee is willing to look around? I’m not sure
- He organises shooting sessions with goalie after match
- Worker with grouse turns to take another look at online publication
- Guarding amenities is such an estate worker
- Goalie after match revealed as worker on estate
- Occupation of goalie after match?
- Plucky player, one thwarting poacher’s goals?
Buddy explains!

The straight part
We know that "Mellows, for example" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case mellows, for example = gamekeeper.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 GAMEKEEPER mean?
GAMEKEEPER noun- A person employed to maintain the game for hunting and all associated materials and effects. Often shortened to keeper.