Directive from Lord Erskine (5)
I believe the answer is:
order
'directive' is the definition.
(I've seen this in another clue)
'from lord erskine' is the wordplay.
'from' indicates a hidden word.
'ORDER' is hidden within 'lord erskine'.
(Other definitions for order that I've seen before include "Arrange < company" , "Religious fraternity" , "goods supplied" , "Tidiness - that's a command" , "Command, injunction" .)