Double meaning

Something named or described by use of the same word used twice, having different meanings -

Concern over a particular guitar part =

Fret.

To neglect something or keep careful watch=

overlook

choose a guitar’s accessory

Pick

Grow vegetables

Farm

The desired answer to the OP is fret fret so pick pick and farm farm work but overlook overlook?

A lamp that isn’t heavy is a …

Light light

Probably should have been “oversee”.

BIP: An accidental erection is a…

boner boner.
To say you won’t accept garbage is to…

Actually, I was going for produce produce instead of farm farm, but ‘produce’ is pronounced two ways.

As is:
Refuse refuse
Knot neckwear

Tie tie.

To practice using a hole-making tool

Drill drill

Slavic shoe shining liquid.

Polish polish

Bend down! Waterfowl coming!

Duck duck

Lucille’s dance

Ball’s ball

Jim’s preachers

Sorry. Misunderstood the game. I thought it was looking for a single word that includes both definitions.

Parsons’ parsons

pieces of dirt run through a mill

ground ground

Rotate the breeze.

Wind wind

Make Johnny sit out a few games

Bench Bench

Mediocre carnival