Papal candidate elected on paper by majority of total (8)

I believe the answer is:
cardinal
'papal candidate' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'elected on paper by majority of total' is the wordplay.
'elected' becomes 'in' (in government).
'on' means one lot of letters go next to another.
'paper by' becomes 'card' (card is a kind of paper. I am not sure about the 'by' bit.).
'majority of' means to remove the last letter.
'total' becomes 'all' (I've seen this before).
'all' with its last letter taken off is 'al'.
'in' put after 'card' is 'cardin'.
'cardin'+'al'='CARDINAL'
Can you help me to learn more?
(Other definitions for cardinal that I've seen before include "Primary - colour" , "Principal - churchman" , "Most important number" , "fundamental importance" , "Key" .)
