Leader (5)
'leader' is the definition.
(I know that leader can be written as boss)
This is the entire clue.
(Other definitions for boss that I've seen before include "Manager (colloq.); stud" , "designer" , "Behave overbearingly" , "Informal employer or superior" , "Leader - knob on shield" .)
'leader' is the definition.
(I know that head is a type of leader)
This is all the clue.
(Other definitions for head that I've seen before include "Noggin" , "Skull" , "Chief; promontory" , "School boss" , "See 14" .)
'leader' is the definition.
(premier is a kind of leader)
This is all the clue.
(Other definitions for premier that I've seen before include "PM" , "Chief minister" , "Aberdeen or Salisbury?" , "First in importance" , "Prime minister" .)
'leader' is the definition.
(I know that ruler is a type of leader)
This is the entire clue.
(Other definitions for ruler that I've seen before include "One in power" , "Straight edge; governor" , "one going straight?" , "Monarch; measurer" , "establishing a line?" .)
'leader' is the definition.
(I know that chief is a type of leader of organization)
This is the entire clue.
(Other definitions for chief that I've seen before include "Key" , "Tribal leader" , "Organisation head" , "Boss" , "Person in charge, head" .)
'leader' is the definition.
(I know that guide is a type of leader)
This is all the clue.
(Other definitions for guide that I've seen before include "One who leads" , "Pilot" , "Steer" , "Direct, influence" , "Female scout" .)
'leader' is the definition.
(the leader of a project or plan)
This is all the clue.
(Other definitions for spearhead that I've seen before include "Advanced troops" , "front" , "initiate attack" , "Lead (a military attack)" , "Lead (an attack or movement)" .)