Crossword Genius

Company which arranged regattas stores warm clothing (10)

Ross

I believe the answer is:

greatcoats

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

'stores warm clothing' is the definition.
Although both the answer and 'stores' are nouns, they are not in the same form of the noun.

'company which arranged regattas' is the wordplay.
I cannot quite see how this works, but
'company' could be 'co' (abbreviation) and 'co' is found in the answer.
an anagram of 'regattas' is 'greatats' which is within the left over letters.
No letters remain.
This explanation may well be incorrect...

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I've seen this clue in The Times and The Sunday Times.
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