I was thrown, as just outside the construction (to the left) there's another 3-letter word for a wee young thing, which reads upwards beginning with 'e'. I found this early on (just after the five-letter one) and counted this as one of them, so I was then wasted my time looking for another one outside to go with the 5-letter one inside that I'd already spotted. So thanks for the tips, Boreas.