Small group involved in PE test (6)

I believe the answer is:

septet

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'small group' is the definition.
'septet' can be an answer for 'group' (I've seen this before). I am not certain of the 'small' bit.

'involved in pe test' is the wordplay.
'involved in' is an anagram indicator (involved can mean complex or confusing).
'pe'+'test'='petest'
'petest' anagrammed gives 'SEPTET'.

Can you help me to learn more?

(Other definitions for septet that I've seen before include "A set of seven" , "piece by Beethoven" , "Musical group" , "Music piece for seven" , "Several players" .)

I've seen this clue in The Globe and Mail.

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