Table inlaid with nacre design for a temple (10)
I believe the answer is:
tabernacle
'for a temple' is the definition.
(I've seen this before)
'table inlaid with nacre design' is the wordplay.
'inlaid with' is an insertion indicator.
'design' indicates an anagram.
'nacre' is an anagram of 'ernac'.
'table' placed around 'ernac' is 'TABERNACLE'.
(Other definitions for tabernacle that I've seen before include "Tent for the Ark of the Covenant" , "Portable tent" , "Nonconformist church" , "Mormon place of worship" , "Tent for Ark in Exodus" .)