Crossword Genius

Top of singles 100 chart, composed score (7)

Ross

I believe the answer is:

scratch

'score' is the definition.
(thesaurus)

'top of singles 100 chart composed' is the wordplay.
'top of' suggests taking the first letters.
'100' becomes 'c' (roman numeral).
'composed' indicates an anagram.
The first letter of 'singles' is 's'.
'chart' is an anagram of 'ratch'.
's'+'c'+'ratch'='SCRATCH'

(Other definitions for scratch that I've seen before include "Deal with itch - cancel entry" , "claw" , "cancel > test > money" , "Score with a sharp object" , "Improvised" .)

I've seen this clue in The Telegraph.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.