Amber perhaps concerned with lapse (5)
I believe the answer is:
resin
'amber' is the definition.
(I've seen this in another clue)
'concerned with lapse' is the wordplay.
'concerned with' becomes 're' (re can mean regarding or about).
'lapse' becomes 'sin' (I've seen this before).
're'+'sin'='RESIN'
'perhaps' acts as a link.
(Other definitions for resin that I've seen before include "Substance obtained from sap of certain plants - transgress again" , "Exudation from fir trees" , "Sticky stuff from pine trees" , "Elemi, for example" , "Substance from tree-sap" .)