It could ruin satin (5)

I believe the answer is:

stain

I'm a little stuck... Click here to teach me more about this clue!

'it' is the definition.
The definition suggests a singular noun which matches the answer.

'ruin satin' is the wordplay.
'ruin' indicates an anagram.
'satin' with letters rearranged gives 'STAIN'.

'could' is the link.

Can you help me to learn more?

(Other definitions for stain that I've seen before include "Colour, dye" , "Discolouring mark" , "Black mark for saint" , "Discoloured patch" , "Discolouration" .)

I've seen this clue in the Evening Standard.

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.