
1) Blusterer 2) Blustery loudmouth 3) Demagogue 4) Dennis Miller, notably 5) Dennis Miller, often 6) Fulminator 7) Loudmouth, often 8) Many a talk show caller 9) Noisy talker 10) One carrying on 11) One giving a tirade 12) One of the harangue gang 13) One on a tirade 14) Person with lots of wind 15) Raver
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https://www.crosswordclues.com/clue/ranter

1) Raver
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https://www.crosswordclues.com/clue/ranter

The Ranters were a sect in the time of the English Commonwealth (1649–1660) who were regarded as heretical by the established Church of that period. Their central idea was pantheistic, that God is essentially in every creature; this led them to deny the authority of the Church, of scripture, of the current ministry and of services, instead calli...
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http://en.wikipedia.org/wiki/Ranter

• (n.) A noisy talker; a raving declaimer. • (n.) One of a religious sect which sprung up in 1645; -- called also Seekers. See Seeker. • (n.) One of the Primitive Methodists, who seceded from the Wesleyan Methodists on the ground of their deficiency in fervor and zeal; -- so called in contempt.
Found on
http://thinkexist.com/dictionary/meaning/ranter/
Rant'er (-ẽr)
noun 1. A noisy talker; a raving declaimer.
2. (Eccl. Hist.) (a) One of a religious sect which sprung up in 1645; -- called also
Seekers . See
Seeker .
(b) One of the Primitive Methodists, who seceded from the Wesleyan Methodi...
Found on
http://www.encyclo.co.uk/webster/R/10

[
n] - someone who rants and raves
Found on
http://www.webdictionary.co.uk/definition.php?query=ranter
raver noun someone who rants and raves; speaks in a violent or loud manner
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.