Perfect group rated me badly before lunch (5,4)

I believe the answer is:

dream team

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

'perfect group' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'rated me badly before lunch' is the wordplay.
'badly' indicates anagramming the letters (letters in the wrong order).
'before lunch' becomes 'am' (I've seen this in other clues).
'rated'+'me'='ratedme'
'ratedme' is an anagram of 'dreamte'.
'dreamte'+'am'='DREAM TEAM'

Can you help me to learn more?

(Other definitions for dream team that I've seen before include "Ideal combination" , "An ideal mix of people" , "Perfect combination of people for a task" , "Group considered as perfect for a given task" .)

I've seen this clue in The Mirror.

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