Crossword Genius

Number turning sour and heavy (7)

Ross

I believe the answer is:

onerous

'heavy' is the definition.
(similar in meaning)

'number turning sour' is the wordplay.
'number' becomes 'one' (one is a kind of whole number).
'turning' is an anagram indicator.
'sour' anagrammed gives 'rous'.
'one'+'rous'='ONEROUS'

'and' is the link.

(Other definitions for onerous that I've seen before include "Burdensome, heavy kind of duty" , "weight" , "Heavy, difficult to do or bear" , "Difficult, troublesome" , "Challenging" .)

I've seen this clue in The Daily Express and The Mirror.
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.