Run, some are crushed like a bunch of grapes (8)
I believe the answer is:
Here is my best explanation:
'a bunch of grapes' is the definition.
I can't tell whether this definition defines the answer.
'run some are crushed' is the wordplay.
'run' becomes 'race' (synonyms).
'are crushed' is an anagram indicator.
'some' with letters rearranged gives 'mose'.
'like' is the link.