The former Tottenham man praised the 23-year-old for his display against Leicester.
Christian Eriksen gave Tottenham the lead, before the Foxes scored either side of the break to turn the game on its head.
But a Harry Kane penalty leveled things up late on and Crouch reserved praise for young Carroll.
Crouch told the BBC at half-time: "I thought Tom Carroll did really well [for the goal] and did what he’s been doing all game, with great passing."
Meanwhile, Wolves' Jordan Graham - released by Aston Villa and now one of the form players of the Championship - also praised Carroll.
He took to Twitter in awe of the 23-year-old's FA Cup performance for Spurs.
Tom Carroll is so good man? He's RUNNING this game— Jordan Graham (@JordanG_14) January 10, 2016
Many Tottenham fans remain unconvinced. But Mauricio Pochettino clearly rates the young midfielder - even if just as a back-up - and he could see more and more game time this season.
The 2-2 draw with Leicester, of course, also means more game time for Tottenham as a whole. Can the north London side win their cup replay or will it be better for their Premier League and Europa League campaigns if they get knocked out?