Urk.... But this De-reverb thing is new to me, but thinking about it carefully, you could indeed run the risk with the compressor, trying, perhaps, to emphasize the dynamics and, as jenn says, by softening the release, failing to control the ambience; with a dereverb (which, by the way, I don't have among my plugins) it would be resolved by controlling the excess ambience.... At the moment, also given the musical genre I compose, I have never found myself using such a plugin... I will inform myself better...
a spectrum analyzer indicates precisely the spectrum of frequencies passing through the expected range, 20 - 20,000 Hz, and their intensity; it doesn't tell you what to add or what to remove, it is just a precious indication to have a precise idea of which frequencies are used by that specific sound timbre.
If only there were a spectrum analyzer capable of telling me which frequency to manipulate!
I have understood that one must have a deep knowledge of the instruments before venturing into risky cuts!
Well, anyway, perhaps one should talk about the objective, that is, what sound you want to get out of that specific instrument; just as a spectrum analyzer would advise you on one sound rather than another, it merely informs you, and then you intervene based on your needs.
As I was saying, a good audio system that you know and trust, and your ears, then the basic knowledge of the plugins used, in this case, a compressor and an equalizer are mandatory.