Could this one have every individual in term losing marks? (7)
I believe the answer is:
teacher
'could this one' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'every individual in term losing marks?' is the wordplay.
'every individual' becomes 'each' (I've seen this before).
'in' is an insertion indicator.
'losing' suggests deleting specific letters.
'marks?' becomes 'M' (former German currency).
'term' with 'm' taken away is 'ter'.
'each' put into 'ter' is 'TEACHER'.
'have' is the link.
(Other definitions for teacher that I've seen before include "School educator" , "Hectare (anag)" , "Coach" , "CARRY ON FILM" , "'Instructor, educator (7)'" .)