Looks ike an escort or “jeep” carrier. Just enough planes to protect a convoy from enemy aircraft.
CC
it probably was laid down as an escort carrier
in 1943!!
A little bigger than that. When built, the HMS Hercules was styled as a "light fleet carrier" displacing around 19K tons.
For comparison, the "jeep carriers" displaced 9-11,000 tons while the Essex class displaced up to 37K tons.