Adapt to current practice (8)
I believe the answer is:
accustom
'adapt' is the definition.
(thesaurus)
'current practice' is the wordplay.
'current' becomes 'ac' (alternating current).
'practice' becomes 'custom' (custom is a kind of practice).
'ac'+'custom'='ACCUSTOM'
'to' is the link.
(Other definitions for accustom that I've seen before include "Make (someone) used to (something)" , "Maybe reconcile" , "get used to" , "Inure" , "Adapt" .)