Total strop Trump's thrown on a regular basis (3,2)
I believe the answer is:
tot up
'total' is the definition.
(I know that total can be written as tot up)
'strop trump's thrown on a regular basis' is the wordplay.
I cannot quite see how this works, but
'on' could be 'to' and 'to' is present in the answer.
The remaining letters 'tup' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for tot up that I've seen before include "Tally" , "Sum - total" , "Reckon" , "Add (some numbers)" , "Determine the sum of" .)