Going through the list, I really enjoy myself (7)

I believe the answer is:

roister

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'really enjoy myself' is the definition.
I can't tell whether this definition defines the answer.

'going through the list i' is the wordplay.
'going through' is an insertion indicator.
'the list' becomes 'roster' (a roster is a list or register).
'roster' placed around 'i' is 'ROISTER'.

Can you help me to learn more?

(Other definitions for roister that I've seen before include "bluster" , "Enfold" , "Engage in party activity" , "Rioters (anag.)" , "Behave boisterously" .)

I've seen this clue in the Evening Standard.

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