The most common and most likely answer to this crossword clue is the 5 plus 5 letter word ROUND ROBIN
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More clues leading to the result ROUND ROBIN
- Where the merry men gathered for a letter?
- Where merry men gathered to play with each other
- Letter signed by many on all sides seen by 4’s partner
- Message for all to endorse in plump Christmas bird
- Plump bird associated with Christmas competition
- Type of ferry carrying German and British during competition
- Where Hood’s men gathered petition?
- Plump bird that’s become part of Christmas for some
- Some drinks run out by receptacle in tournament?
- Plump boy’s petition
Buddy explains!

The straight part
We know that "competition" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case competition = round robin.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.
Crossword Answer definitions
ROUND ROBIN noun- The part of a tournament in which every player or team competes against each of the others in turn.
- A petition signed in a circular fashion to disguise the order in which it was done.
- A letter, with copies to multiple recipients, usually at Christmastime and often enclosed with a card, giving family news of interest to the sender.
- A method of dividing loot amongst a party of players by having the game assign in turn loot to a player or an enemy corpse to loot to a player.
- A form of trade, wherein a stamp collector sends a packet of stamps to the next person on a list, who then takes the stamps he wants, replacing them with like-valued stamps, and then passing the packet to the next person on the list, until the packet ultimately returns to the original sender.
- A method of dividing labor between several similar subsystems, assigning tasks to each of them in turn in an attempt to use resources more equitably.