Melania dress/ orange reference?
As many critics have mentioned, Burgess's title is inspired by the Cockney expression "queer as a clockwork orange" ("queer" meaning "strange" or "unusual"). Both the novel and the film seem to imply that wild oranges, like Alex himself, are living things that should be allowed to grow in natural and unpredictable ways. By contrast, the Ludovico technique involves an attempt to reduce the natural complexity of a living, organic "orange" into a mindless and mechanized "clockwork" object. After all, the Ludovico technique doesn't help Alex become a better person; even after treatment, Alex still wants to perform violent acts. Rather, the treatment instills Alex with a mechanized response to violence that renders him incapable of choosing to act on his impulses. For both Burgess's novel and Kubrick's film, this ultimately makes the treatment a failure.
https://screenrant.com/clockwork-orange-movie-title-meaning-explained/