Possible Clues:

• Expert in studying data
• Data pro
• One may examine vacuous lady visiting Santa in trouble
• Someone skilled in detailed examination of structure
• Data examiner
• Head examiner a learner probes whichever way
• One who carries out 21dn
• One might excel at using Excel
• He could probably calculate composition of any salt properly presented
• One who breaks down in the lab? A record producer, we hear