Peel lacier bra off, precious! (13)
I believe the answer is:
irreplaceable
'precious' is the definition.
(thesaurus)
'peel lacier bra off' is the wordplay.
'off' is an anagram indicator.
'peel'+'lacier'+'bra'='peellacierbra'
'peellacierbra' is an anagram of 'IRREPLACEABLE'.
(Other definitions for irreplaceable that I've seen before include "precious!" , "Cannot be substituted" , "Unique" , "Whose loss cannot be made good" , "Without possible substitute" .)