Follower of Iron Maiden loses dare (6)
I believe the answer is:
Here is my best explanation:
'follower' is the definition.
(minion is a kind of follower)
'iron maiden loses dare' is the subsidiary indication.
I cannot quite see how this works, but
'maiden' could be 'm' (cricket abbreviation) and 'm' is present in the answer.
The remaining letters 'inion' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'of' is the link.
(Other definitions for minion that I've seen before include "Servile follower", "Dependant, underling", "Subordinate", "Servile dependant", "flunkey", "Servile favourite", "Flunky", "Underling", "Servile assistant" and "Servile underling".)