Clove cigs originated in Indonesian and are generically called
kretek there. The Javanese guy who invented them supposedly did it to alleviate smoker's hack! I liked them when I use to smoke cigs though I did not smoke them regularly. The paper is infused with something sweet and the smoke crackles from the burning cloves. The smoke also numbs your mouth. There is definitely tobacco in them. As I understand it, some of the the manufacturers have circumvented the ban in the US by making them into little cigars, supposedly not as strong as the cigs.
Besides Bosun Cut Plug and Bosun Plug, RB Plug also has cloves. However, as far as I can tell, GH and SG use clove essence rather than the actual ground up spice. These Kendal products also have a lot of other flavors added as well, so the clove in them is nowhere as prominent as in the Indonesian cigs.
I don't think we have any active Indonesian members on this forum, but I wonder if the Malaysians and Singaporeans here have come across Indonesian pipe tobacco with cloves added.
@tklee @rmatuag @davidsaulmarshall have you?