I’m a holder of briefs; or a shelving for books;
I’m a trial in court; or the argument hooks;
A particular instance where one study looks;
And a survey of places by wannabe crooks.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

I’m the versatile notes that a singer displays;
Where the buffalo roam and the cattle can graze;
I’m the radius radio broadcasting plays;
I’m where golfers can drive; and where shooters can blaze.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

Where there’s water conveyed, there I first must be laid;
I’m a ramp that is made for the board or the blade;
I’m a smoker’s upgrade; an impromptu grenade;
And an instrument played, once the player is paid.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

I’m a day of the year on the calendar’s page;
I’m a fruit of the desert that ripens by stage;
I’m an outing that you, with a partner, engage;
And the act of determining something’s true age.

Who am I?

UPDATE: Riddle solved by Annalisa. See comments for answer.

I’m the selling of drugs, or the cars in the yard;
I am callous advice spent with little regard;
To distribute the deck, throwing card after card;
Or a price that’s agreed on by bargaining hard.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

I lay out the path for a trained engineer;
When I’m third, politicians all know to stay clear;
I’m a family of birds from the wetlands or near;
And a long bitter rant shared with all who can hear.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

I am sidekick to Spenser; and Foghorn’s small foe;
I am selling a product; I lead G.I. Joe;
When debating a war, I am generally pro;
I am Ethan in movies, and Tony to go.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

I’m a hip kind of music; or old kind of dance;
I’m a plant used in beer, for the taste I enhance;
I’m to jump while maintaining a one-legged stance;
Or with bars in succession, to quickly advance.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

I indent on the keyboard a five-spaces span;
In a bar or a club, I’m the bill that you ran;
I am notes for guitarists, a fingering plan;
And a cult diet soda; I’ll open the can.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

I go well with your coffee – just order it light;
I’m a late-60’s rock band; a shade of off-white;
I am used before shaving; to beat in a fight;
And a filling in chocolates found after you bite.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.