Test great mania disorder, equally suppressed (3,6)
I believe the answer is:
ian botham
'test great' is the definition.
I don't know anything about this answer so I cannot tell whether this works.
'mania disorder equally suppressed' is the wordplay.
'disorder' indicates anagramming the letters (a disordered version of the letters).
'equally' becomes 'both' (I've seen this in another clue).
'suppressed' is an insertion indicator (inserted letters are suppressed by others).
'mania' is an anagram of 'ianam'.
'ianam' placed around 'both' is 'IAN BOTHAM'.
Can you help me to learn more?
(Another definition for ian botham that I've seen is " Beefy".)