Command from Lord Erris (5)
I believe the answer is:
order
'command' is the definition.
(order is a kind of command)
'from lord erris' is the wordplay.
'from' indicates a hidden word.
'ORDER' can be found hidden inside 'lord erris'.
(Other definitions for order that I've seen before include "Kind - sort" , "Direction; class; arrange" , "Direct - sequence" , "Command; social class" , "Type of column" .)