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

'revealing garments?' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.

'i'm turning crimson randomly clutching one' is the wordplay.
I cannot quite see how this works, but
'i'm' could be 'i' (I've seen this in other clues) and 'i' is found within 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 left over letters.
A single letter 'm' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?