Going by this story, he played Casey Development League in 2016.
https://www.heraldsun.com.au/leader/localfooty/efl-2018-south-croydon-young-gun-frank-anderson-remains-focused-on-afl-dream-after-overcoming-hip-dysplasia/news-story/aa2d18f56fd6a5439fdf1887e10c90bf
Clarko don't care what he gives up and it got him 4 flags. Draft picks are somewhat speculative compared to known quantities, so why not. I'd take 5 and 23, give GC 5 for May and KK then try package up 23 and 33 to get something higher.