Crossword Genius

During the summing up, as well (2,8)

Ross

I believe the answer is:

in addition

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

'as well' is the definition.
(thesaurus)

'during the summing up' is the wordplay.
'during' becomes 'in' (e.g. during February means in February).
'the summing up' becomes 'addition' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'in'+'addition'='IN ADDITION'

Can you help me to learn more?

(Another definition for in addition that I've seen is " Also".)

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app