The most common and most likely answer to this crossword clue is the 6 letter word PRO-AM
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More clues leading to the result PRO-AM
Buddy explains!

The straight part
We know that "Type of competition" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case type of competition = pro-am.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 PRO-AM mean?
PRO-AM noun- A competition in which both professional and amateur competitors participate.
- An amateur who engages in some activity at a professional or near-professional level of skill or competence.