Anderson, who played 55 times in all competitions for Newcastle United, made his debut in an FA Cup defeat by Arsenal in January 2021 before joining Bristol Rovers on loan a year later.
It was there that he completed a vital part of his education – while also featuring in what might still be the most remarkable match of his career.
Former Republic of Ireland international Glenn Whelan was player-coach at Bristol Rovers, and vividly remembers the impact the confident “but never arrogant” Anderson made in the West Country.
He told BBC Sport: “He just came into the building and showed his potential straight away. Nothing seemed to faze him. You could see straight away this boy was different.
“As the coach, there were certain scenarios in training when I tried to put him under a little pressure. Some kids would be a little bit more reserved and fall back. Elliot was right on the front foot. He took the bull by the horns.”
The date of 5 February 2022 proved significant in Anderson’s development, as Whelan recalled.
“We were away to Sutton United,” he said. “They were doing well and were a proper men’s team with a lot of grit. Some of the coaching team were a little wary of throwing him in against them.
“We were losing at half-time and I basically said, ‘we need to get this lad on because he’s a game-changer’. He came on and made an impact. He won a penalty and we drew. I think he played pretty much every minute after that.”
Anderson’s attitude and determination stood out as he excelled at Bristol Rovers – ending in a dramatic climax to the season.
“He just had a confidence about him to show everyone how good he was,” said Whelan. “It was not arrogance. He’d obviously had a great upbringing from his family and he had that Geordie in him.
“He played off the left wing, but if the ball wasn’t coming to him he would go and look for it. He didn’t care who was marking him. He could take the ball under pressure and make things happen.
“Elliot loved training. He wanted to learn, do the extras. He had the attitude to stay behind and get better. We could tell straight away he was going to be a top player.”
Anderson left Bristol Rovers after one of the greatest days in their history, when they clinched promotion to League One on the final day of the season.
The Pirates started the day needing to better the result of third-placed Northampton or win by five goals more than their rivals. They won 7-0, Anderson getting the final goal with five minutes remaining to help Rovers move into the top three for the first time all season.
Anderson made his triumphant farewell, cheered off by jubilant Rovers supporters.