Cryptic crossword clue
Pin diaper around a type of trouser 9

The most common and most likely answer to this crossword clue is the 9 letter word DRAINPIPE

I've seen this crossword clue in Independent
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Buddy explains!

The straight part
We know that "a type of trouser" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a type of trouser = drainpipe.
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 DRAINPIPE mean?

DRAINPIPE noun
  1. A pipe that carries fluid which is being drained.
  2. The type of pipe that is used to construct a drainpipe.
  3. A type of form-fitting trousers with highly tapered legs.

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