
1) Archpriest 2) Authority figure 3) Head of a religious group 4) High priest 5) One result of the Deluge 6) Prelate 7) Priest 8) Primate 
Found on 
https://www.crosswordclues.com/clue/hierarch

1) Archpriest 2) Churchdom 3) Inge 4) Prelate 5) Primate 6) Richelieu 7) Tutu 8) Usher 9) Ussher 10) Wykeham 11) Wyszynski 
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https://www.crosswordclues.com/clue/hierarch

• (n.) One who has high and controlling authority in sacred things; the chief of a sacred order; as, princely hierarchs.
Found on 
http://thinkexist.com/dictionary/meaning/hierarch/
 Hi'er·arch  noun
Hi'er·arch  noun [ Late Latin 
 hierarcha , Greek ...; 
 'iero`s sacred (akin to Sanskrit 
 ishiras vigorous, fresh, blooming) + ... leader, ruler, from ... to lead, rule: confer French 
 hiérarque .] One who has high and controlling authority in sacred things; the chief of a sa...
Found on 
http://www.encyclo.co.uk/webster/H/43

hierarch 1. One who has rule or authority in holy things; an ecclesiastical ruler or potentate; a chief priest; a chief prelate, an archbishop.  2. Applied to an archangel; also to Christ, as commander of the celestial hierarch.
Found on 
http://www.wordinfo.info/words/index/info/view_unit/986/

a person who rules or has authority in sacred matters; high priest. · a person having high position or considerable authority. · one of a body of officials or minor priests in certain ancient Greek temples.
Found on 
https://www.infoplease.com/dictionary/hierarch
  No exact match found.