Dual given for the entire flight. The entire flight is instrument training, not just the time you were under the hood.
No. The entire flight is training. It is not instrument training unless under simulated or actual instrument conditions.
It's dual received. Not dual given (you're an instrument student, not an instructor).
Only the time under the hood is simulated instrument time.
The requirements for the instrument rating require 40 hours simulated or actual instrument time, of which 15 hours must be instruction under simulated or actual instrument conditions. So, time not under the hood counts as total time, but NOT for an instrument rating. Except for cross country time if there is a point of landing 50 miles from the starting point. See 14 CFR 61.65(d)(2).
It's not a small difference. Time spent waiting for release, testing avionics, taxiing, etc., all counts for flight time (as long as the engine is running, for the purpose of flight), but not simulated instrument time.
I hope you're logging simulated/actual instrument time separately from dual. You can easily have simulated instrument time that isn't dual. With a safety pilot who is not rated as a CFII (or even with one who is, but is not acting as an instructor -- it's a fine line). You can even have actual instrument PIC time (logged) that isn't dual as long as the acting PIC has an instrument rating and is current and otherwise able and willing to act as PIC under IFR. Just make sure you log the safety pilot name, even though that's not required for actual conditions. Otherwise you might get a question at your checkride.