The phrase "a sort of hobby" is correct and usable in written English.
It can be used to describe an activity that someone engages in for enjoyment, but which may not be a full-fledged or serious hobby.
Example: "Gardening has become a sort of hobby for me, something I do to relax on weekends."
Alternatives: "kind of pastime" or "type of leisure activity".
The prince says hedge building is a "terrific exercise and, at the same time, it's a sort of hobby or interest to see if you can get better at doing it".
We've made it a sort of hobby to post our Comcast experiences here at CG, more often than not because they've been terribletastic and we needed to be angry publicly for our own satisfaction.
When I was a little kid, I lived on a small farm that was kept going as a sort of hobby.
"Some community members only care for finding glitches and exploits, a sort of hobby quality assurance," Chris says, "and there are others who enjoy spectating and talking about speedruns, who aren't necessarily interested in speedrunning themselves".
He started collecting and analyzing the snow as a sort of weekend hobby.
As a result, what had been a sort of macabre hobby of mine, indulging in the odd bout of health anxiety, graduated to a near obsessive level and, like my dad, I was pretty much focused on one thing.
It's a harmless sort of hobby.
The justices have additionally agreed to hear high-profile cases on abortion clinics; a sort of sequel to the Hobby Lobby case, which involves employers and birth control; and the future of public sector unions.
"A lot of the pictures involve whatever sort of hobby I have at the moment, so a lot of my pictures right now have flight in them," Zev explained.
The Dead Weather is Jack's latest hobby, a sort of stoner garage-rock supergroup in which he features alongside the singer Alison Mosshart from the Kills, the bassist Jack Lawrence from the Raconteurs and the guitarist/ keyboardist Dean Fertita from Queens of the Stone Age.
