People in board susceptible to research (9)
I believe the answer is:
traceable
'susceptible to research' is the definition.
I can't tell whether this definition defines the answer.
'people in board' is the wordplay.
'people' becomes 'race' (people can mean a national group or race).
'in' is an insertion indicator.
'board' becomes 'table' (both can mean food).
'race' put inside 'table' is 'TRACEABLE'.
Can you help me to learn more?
(Another definition for traceable that I've seen is " Able to be found by investigation".)