'devoid of a' is a correct and usable part of a sentence in written English.
It is typically used to emphasize the lack or absence of something. For example: "The room was devoid of a single source of light."
Contemporary cocoonery is not devoid of a merchandising component.
"The confession is usually devoid of a lot of facts.
Instead, it stumbles forward, disguised as prestige TV but devoid of a soul.
Despite some scrappy spurts, the Nets seemed to be devoid of a pulse.
A celebrity atheist is a nasty, promiscuous bully, utterly devoid of a moral compass.
Listening to a voice completely devoid of a New York accent, I expressed disbelief.
Mosley's prose here seems affectless, the book apparently devoid of a plot.
He was also clueless, devoid of a fully formed personality and a borderline psychopath.
11.46am GMT Civil servants are not always devoid of a sense of humour.
False oölites bear superficial resemblance to oölites but are devoid of a regular internal structure.
His works were not devoid of a bit of artistic fraud.
