One quiz at a time

[Glenn E.]

Yes, that is a rather good clue.

Ruby Port?

[RAYC]

Yes, that is a rather good clue.

Ruby Port?

The third category: for sure.

The first and second categories: not so far as I am aware from comprehensive google searches (and I apologise in advance for a rubbish quiz if they are...)

[RAYC]

I have a true-to-theme prize for anyone who can tell me the connection between the following words/phrases: definitive; first option; fusion; tribute

Clue 1: a related category of words/phrases includes: fourth quarter, blend Nº 4

Clue 2: a separate related category of words/phrases includes: midnight, icon, renown, nirvana

Clue 3: think legal

[PhilW]

After your second clue, I was thinking alnong the lines of whisky or tabacco/cigars or cigar menu - but figured you would have replied "close but no cigar" if that had been the answer; I thought about possible law-related options but came up blank.
The only other thought I had was in relation to "other substances" which could be smoked/eaten which might induce "nirvana"... such as bacon, egg and black pudding baps at two in the morning, of course

[RAYC]

A quick game is a good game - answer posted tonight.

Phil - Nirvana, Midnight, Icon Reserve and Renown are (or were) all brands of ruby port released by Dow.

[RAYC]

Nirvana, Midnight, Icon Reserve and Renown are (or were) all brands of ruby port released by Dow.

Whereas Dow's Definitive, Dow's First Option, Dow's Fusion and Tribute Port are all EU trademarks registered* in the "alcoholic drinks" category by what i assume is the Dow holding company, but which do not seem to have made it to "release". Could these have been putative Ruby brand names?

In the second category, Fourth Quarter is a trademark registered by what i assume is the Warre holding company, and Graham's Blend Nº 4 and Blend Nº 4 were both registered (at about the same time as Natura...) by what i assume is the Graham holding company, but again which do not seem to have been released (...yet, at least).

* apart from Tribute Port, which was rejected