The most common and most likely answer to this crossword clue is the 9 letter word POLYESTER
I've seen this crossword clue in The Times
P
O
L
Y
E
S
T
E
R
More clues leading to the result POLYESTER
- Bill entertains washing solution for suitable material?
- Notice about caustic liquid, manmade stuff
- Material from learner you incorporated in advertisement
- Two girls discussed something found in pants, for example
- Publicity surrounding liquid used for washing material found in fabrics
- Fabric cut up not long ago, a third off
- Material girls in conversation?
- Material two girls put together, we hear
- Cut back on young trees pulped for fabric
- Synthetic fibre made by college, girl heard
Buddy explains!

The straight part
We know that "suitable material?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case suitable material? = polyester.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 POLYESTER mean?
POLYESTER noun- Any polymer whose monomers are linked together by ester bonds
- A material or fabric made from polyester polymer
- Of, or consisting of polyesters