One having loads, rolling in it, after laundering? (4-5)

'one' is the definition.
Both the answer and definition are singular nouns.
Perhaps there's an association between them I don't understand?

'loads rolling in it after laundering?' is the wordplay.
I cannot quite understand how this works, but
'loads' could be 'd' and 'd' is found in the answer.
'in' is present in the answer.
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found within the answer.
This may be the basis of clue (or it may be nonsense).

'having' acts as a link.

Can you help me to learn more?