The most common and most likely answer to this crossword clue is the 3 letter word ONE
O
N
E
More clues leading to the result ONE
- Type of play broadcast all at once
- United were victorious reportedly
- Like intimate combat that you’ve just seen here!
- With a team completely on top? Indeed so, for a change
- We cancel short journey to find convenience store
- Money trimmed, small figure
- Henry leaves Frank a record for dance
- Love being by sea with musicians, it’s something with pull
- Figure taking drugs
- Old Norse and English, united
Buddy explains!

The straight part
We know that "Machine offering some risk" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case machine offering some risk = one.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 ONE mean?
ONE noun- The digit or figure 1.
- The neutral element with respect to multiplication in a ring.
- A one-dollar bill.
- One run scored by hitting the ball and running between the wickets; a single.
- A joke or amusing anecdote.
- A particularly special or compatible person or thing.
- (leet) Used instead of ! to amplify an exclamation, parodying unskilled typists who forget to press the shift key while typing exclamation points, thus typing "1".
- To cause to become one; to gather into a single whole; to unite.
- Of a period of time, being particular.
- Being a single, unspecified thing; a; any.
- Sole, only.
- Whole, entire.
- In agreement.
- The same.
- Being a preeminent example.
- Being an unknown person with the specified name; see also "a certain".
- The number represented by the Arabic numeral 1; the numerical value equal to that cardinal number.
- The first positive number in the set of natural numbers.
- The cardinality of the smallest nonempty set.
- The ordinality of an element which has no predecessor, usually called first or number one.
- (impersonal pronoun, indefinite) One thing (among a group of others); one member of a group.
- (impersonal pronoun, sometimes with "the") The first mentioned of two things or people, as opposed to the other.
- (indefinite personal pronoun) Any person (applying to people in general).
- (pronoun) Any person, entity or thing.