Inexperienced lawyer volunteers unvarnished facts (3,4)
I believe the answer is:
raw data
'inexperienced lawyer volunteers unvarnished facts' is the definition.
I can't tell whether this definition defines the answer.
'inexperienced lawyer volunteers' is the wordplay.
'inexperienced' becomes 'raw' (similar in meaning).
'lawyer' becomes 'da' (abbreviation for District Attorney).
'volunteers' becomes 'TA' (abbreviation for Territorial Army).
'raw'+'da'+'ta'='RAW DATA'
Can you help me to learn more?
(Other definitions for raw data that I've seen before include "unchecked information" , "What statisticians must work on" , "information being analysed?" , "unchecked stats" .)