A trite system for covering a person (6)

I believe the answer is:

attire

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

'for covering a person' is the definition.
I can't judge whether this defines the answer.

'a trite system' is the wordplay.
'system' indicates anagramming the letters (another version or system with the same letters).
'trite' with letters rearranged gives 'ttire'.
'a'+'ttire'='ATTIRE'

Can you help me to learn more?

(Other definitions for attire that I've seen before include "Formal clothing" , "I treat badly the dress." , "Clothes worn" , "Clothing, apparel" , "Prepare" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app