Position of sculptor's works lacking energy (6)
I believe the answer is:
status
'position' is the definition.
(one's status or standing)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for status that I've seen before include "One's position or rank relative to others" , "Place in society" , "Position eg in society" , "legal position" , "Social position or grade" .)