Crossword Genius

They try to score total: it's divided by a hundred (7)

Ross

I believe the answer is:

addicts

'they try to score' is the definition.

'total it's divided by a hundred' is the wordplay.
'total' becomes 'add' (synonyms).
'divided by' is an insertion indicator.
'a hundred' becomes 'C' (Roman numeral).
'its' going around 'c' is 'icts'.
'add'+'icts'='ADDICTS'

(Other definitions for addicts that I've seen before include "Habitual drug users" , "People who are hooked" , "People with compulsive ailments as for drugs" , "Junkies" .)

I've seen this clue in The Guardian.
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