The most common and most likely answer to this crossword clue is the 5 letter word NAPPY
I've seen this crossword clue in The Times
N
A
P
P
Y
More clues leading to the result NAPPY
- Garment frequently dropping off, could one say?
- Piece of material that is smart, concealing the head
- Refusal to keep very quiet? That may have to be changed
- Strong piece of material that may be disposable
- Quick! Discard small diaper
- Fuzzy diaper?
- Where child might go and sleep, possibly exhausted
- Kinky British diaper
Buddy explains!

The straight part
We know that "Garment" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case garment = nappy.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 NAPPY mean?
NAPPY noun- An absorbent garment worn by a baby who does not yet have voluntary control of his or her bladder and bowels or by someone who is incontinent; a diaper.
- To put a nappy on.
- Having a nap (of cloth etc.); downy; shaggy.
- (sometimes offensive) Of hair: tightly curled or twisted; frizzy (often specifically in reference to Afro textured hair)
- Inclined to sleep; sleepy.
- A shallow, flat-bottomed earthenware or glass bowl with sloping sides.
- A kind of strong ale; nappy ale.
- (of a drink) Foamy; having a large head.
- (of a horse) Nervous, excitable.
- Brittle