The most common and most likely answer to this crossword clue is the 9 letter word SADDLEBAG
I've seen this crossword clue in The Times
S
A
D
D
L
E
B
A
G
More clues leading to the result SADDLEBAG
- Doctor pulled up murder victim in slump, one lying over the wheel?
- Carrier starts to ship goods, securing awfully bad deal
- Excess weight put on ass?
- One addition to ass perhaps women don’t want!
- Burden on graduate needing good cycling accessory?
- Burden on reserve’s attachment to bike
- One adds extra weight to ass
- Melancholy setter possibly loses heart bringing back murder victim on the back of a bike
- Bagels Dad stuffed into carryall
- Criminal beds lad with a thousand rolls of fat
Buddy explains!

The straight part
We know that "one lying over the wheel?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one lying over the wheel? = saddlebag.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 SADDLEBAG mean?
SADDLEBAG noun- A covered pouch, usually one of a pair, laid across the back of a horse, donkey, or mule behind its saddle, or hanging over the rear wheel of a bicycle or motorcycle; often made of leather or (on a bicycle or motorcycle) a rigid material.
- (in the plural) Loose fatty flesh on a person's upper thighs or buttocks, that hangs like saddlebags.
- A style of house with two rooms separated by a small hall and open space.