Revealing garments? I’m turning crimson, randomly clutching one (5-5)

'revealing garments?' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'i'm turning crimson randomly clutching one' is the wordplay.
I cannot really see how this works, but
'i'm' could be 'i' (I've seen this in other clues) and 'i' is located in the answer.
'one' could be 'i' (Roman numeral) and 'i' is found within the answer.
an anagram of 'crimson' is 'cromnis' which is within the remaining letters.
A single letter 'm' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?