Xhaka endured a difficult debut campaign at Arsenal last season and has also come in for criticism for his performances this term.
The Switzerland international, who cost the Gunners £30m from Borussia Monchengladbach, has started all of Arsenal’s 11 Premier League games.
Parlour reckons Xhaka is showing signs of improvements but believes his former Arsenal team-mate Silva could help take him to the next level.
“I saw signs last season at the end that he was really coming into his game and getting used to the Premier League,” Parlour told AskFans.
“It’s tough for midfielders, central midfield is a really tough position.
“I was lucky to play their myself and it’s a real demanding role for you, but you’ve got to have good central midfielders in there.
“I think Xhaka, if he could learn a bit off Gilberto Silva, I think he will be a much better player”
“At times he has been a little hit and miss this season, I think at times he’s played really well.
“Sometimes he’s got to be a bit more efficient with the ball, pass it a little bit quicker, and read situations. We’ve seen certain situations at Arsenal where he just doesn’t read it well.
“We probably had the best player at reading situations when I played, Gilberto Silva.
“He wasn’t one of those players who you would notice a lot in a game but he was always in the right position at the right times.
“I think Xhaka, if he could go away and learn a little bit off Gilberto Silva, his positioning and certain incidents in games, then I think he will be a much better player.”