British currency (5)
'british currency' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pound that I've seen before include "Weight - currency - beat - enclosure" , "Egyptian currency" , "16 ounces" , "Enclosure for stray animals" , "Repeatedly strike" .)
(Other definitions for pound sterling that I've seen before include "Tender" , "UK currency" .)