The most common and most likely answer to this crossword clue is the 5 letter word WEDGE
I've seen this crossword clue in The Times
W
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More clues leading to the result WEDGE
Buddy explains!

The straight part
We know that "club" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case club = wedge.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 WEDGE mean?
WEDGE noun- One of the simple machines; a piece of material, such as metal or wood, thick at one edge and tapered to a thin edge at the other for insertion in a narrow crevice, used for splitting, tightening, securing, or levering.
- A piece (of food, metal, wood etc.) having this shape.
- A five-sided polyhedron with a rectangular base, two rectangular or trapezoidal sides meeting in an edge, and two triangular ends.
- Something that creates a division, gap or distance between things.
- A flank of cavalry acting to split some portion of an opposing army, charging in an inverted V formation.
- A type of iron club used for short, high trajectories.
- A group of geese, swans or other birds when they are in flight in a V formation.
- One of a pair of wedge-heeled shoes.
- A quantity of money.
- A sandwich made on a long, cylindrical roll.
- Háček
- The IPA character ʌ, which denotes an open-mid back unrounded vowel.
- The symbol ∧, denoting a meet (infimum) operation or logical conjunction.
- A wedge tornado.
- A market trend characterized by a contracting range in prices coupled with an upward trend in prices (a rising wedge) or a downward trend in prices (a falling wedge).
- To support or secure using a wedge.
- To force into a narrow gap.
- To work wet clay by cutting or kneading for the purpose of homogenizing the mass and expelling air bubbles.
- Of a computer program or system: to get stuck in an unresponsive state.
- To cleave with a wedge.
- To force or drive with a wedge.
- To shape into a wedge.
- (Cambridge University slang) The person whose name stands lowest on the list of the classical tripos.