Diamond song could make Colin see water (5,8)

I believe the answer is:

sweet caroline

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

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

'make colin see water' is the wordplay.
'make' is an anagram indicator.
'colin'+'see'+'water'='colinseewater'
'colinseewater' anagrammed gives 'SWEET CAROLINE'.

'could' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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.