All spoken or nearly all (4)
I believe the answer is:
oral
'all spoken' is the definition.
'oral' can be an answer for 'spoken' (similar in meaning). I am not sure about the 'all' bit.
'or nearly all' is the wordplay.
'nearly all' becomes 'al'.
'or'+'al'='ORAL'
Can you help me to learn more?
(Other definitions for oral that I've seen before include "Said - form of test" , "Kind of examination" , "Verbal" , "from the trap" , "Mouth-related" .)