The most common and most likely answer to this crossword clue is the 7 letter word LEATHER
I've seen this crossword clue in The Daily Telegraph
L
E
A
T
H
E
R
More clues leading to the result LEATHER
- Hide face finally in bubbles
- Cricket ball found in meadow by the river
- Entering state, hurricane finally hit hard
- Nonsense writer without the polish?
- Hide in state of agitation with prince finally entering
- One who wrote nonsense about the kid, perhaps
- Study finishing early without the material
- Boggle at Herbie’s entertaining tanned skin
- Thrash metal not initially rocking that woman
- Chaps feature this article penned by King
Buddy explains!

The straight part
We know that "Oxford material" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case oxford material = leather.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 LEATHER mean?
LEATHER noun- A tough material produced from the skin of animals, by tanning or similar process, used e.g. for clothing.
- A piece of the above used for polishing.
- A cricket ball or football.
- (plural: leathers) clothing made from the skin of animals, often worn by motorcycle riders.
- A good defensive play
- A punch.
- The skin.
- To cover with leather.
- To strike forcefully.
- To beat with a leather belt or strap.
- Made of leather.
- Referring to one who wears leather clothing (motorcycle jacket, chaps over 501 jeans, boots), especially as a sign of sadomasochistic homosexuality.