Crossword Genius

Very short dresses and short crimson pants (6)

Ross

I believe the answer is:

micros

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'very short dresses and' is the definition.
I can't judge whether this defines the answer.

'short crimson pants' is the wordplay.
'short' means to remove the last letter.
'pants' is an anagram indicator (UK informal term for 'nonsense' or 'rubbish').
'crimson' with its final letter removed is 'crimso'.
'crimso' is an anagram of 'MICROS'.

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I've seen this clue in The Guardian.
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