The most common and most likely answer to this crossword clue is the 7 letter word RACKETS
I've seen this crossword clue in The Times
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More clues leading to the result RACKETS
Buddy explains!
The straight part
We know that "Illegal enterprises" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case illegal enterprises = rackets.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 RACKETS mean?
RACKETS noun- A racquet: an implement with a handle connected to a round frame strung with wire, sinew, or plastic cords, and used to hit a ball, such as in tennis or a birdie in badminton.
- A snowshoe formed of cords stretched across a long and narrow frame of light wood.
- A broad wooden shoe or patten for a man or horse, to allow walking on marshy or soft ground.
- A loud noise.
- A fraud or swindle; an illegal scheme for profit.
- A carouse; any reckless dissipation.
- Something taking place considered as exciting, trying, unusual, etc. or as an ordeal.
- The game of racquets.