11 across
Different
offspring
almost
certain
to
succeed
(4,2)
Different offspring almost certain to succeed (4,2)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
The definition is almost certain to succeed, which is how you'd describe something that's odds-on. For the wordplay, put different (ODD) next to offspring (SON) and you get ODDSON, which the enumeration (4,2) splits into two words.