The most common and most likely answer to this crossword clue is the 11 letter word MASQUERADES
I've seen this crossword clue in The Daily Telegraph
M
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Buddy explains!
The straight part
We know that "Entertainments" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case entertainments = masquerades.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 MASQUERADES mean?
MASQUERADES noun- An assembly or party of people wearing (usually elaborate or fanciful) masks and costumes, and amusing themselves with dancing, conversation, or other diversions.
- The act of wearing a mask or dressing up in a costume for, or as if for, a masquerade ball.
- An act of living under false pretenses; a concealment of something by a false or unreal show; a disguise, a pretence; also, a pretentious display.
- An assembly of varied, often fanciful, things.
- A cosplay event at which costumed attendees perform skits.
- A dramatic performance by actors in masks; a mask or masque.
- A Spanish entertainment or military exercise in which squadrons of horses charge at each other, the riders fighting with bucklers and canes.
- To take part in a masquerade; to assemble in masks and costumes; to wear a disguise.
- To pass off as a different person or a person with qualities that one does not possess; also, to make a pretentious show of being what one is not.
- To conceal (someone) with, or as if with, a mask; to disguise.