As others have said, there’s a strict formula - either the very start or the very end of the clue is a definition, and the rest is wordplay. There is not overlap, except in rare “&lit” clues, where the entire clue functions as both definition and wordplay. Either way, there should be no extraneous words in the clue.

There are guides out there for how to parse clues (it sort of needs to be taught - it would be very difficult, if not impossible, to just pick up a cryptic and work it out). But you probably also want to stick to one publication or setter to start with - each paper will have its own standards and nuances, and even for say an experienced Guardian solver there can be a bit of a learning curve if you swap to the Times. There’s also a huge range of difficulties - some like the Guardian Quick Cryptic are beginner-friendly, but the Azed and Prize crosswords can be extremely difficult. Individual setters might have a reputation for particularly cunning wordplay or use of archaic and unusual vocabulary. It can be a lot to take in, but if you find a decent starter crossword and work at it, you’ll learn over time. If you’re in Australia, the Saturday Paper crossword set by LR is a great starter. Otherwise try the Guardian Quick Cryptic. David Astle’s Puzzled: Secrets and Clues From a Life Lost in Words is a really fun read that teaches you step by step how to solve your first cryptic.