The most common and most likely answer to this crossword clue is the 7 letter word ORGANZA
I've seen this crossword clue in The Guardian
O
R
G
A
N
Z
A
More clues leading to the result ORGANZA
- Part of body area includes unknown thin material
- Material of gold, not initially cut into strip abroad
- Zappa heartlessly rendered on big instrument is thin material
- Sheer fabrication in South African newspaper?
- Possibly the last newspaper with adult material
- Material of knitted angora with unknown ingredient
- Widely differing characters added to journal’s material
- Thin material in newspaper supported by South Africa
- Newspaper article containing latest in showbiz material
- Extremists literally behind newspaper material
Buddy explains!

The straight part
We know that "material" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case material = organza.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 ORGANZA mean?
ORGANZA noun- A thin, stiff, sheer fabric that is made from silk or a synthetic yarn, which resembles organdy, and is used in dressmaking.