The most common and most likely answer to this crossword clue is the 10 letter word ACTIVITIES
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Buddy explains!
The straight part
We know that "they provide leisure" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case they provide leisure = activities.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 ACTIVITIES mean?
ACTIVITIES noun- The state or quality of being active; activeness.
- Something done as an action or a movement.
- Something done for pleasure or entertainment, especially one involving movement or an excursion.
- (grammar) The lexical aspect (aktionsart) of verbs or predicates that change over time and have no natural end point.