Clayton reached 10 yellow cards for the season in Saturday's home defeat to Hull and starts a two-game ban, so Scott Arfield and Chris Atkinson could come into contention.
Otherwise, Robins will choose from an unchanged squad with winger Danny Ward, strikers Theo Robinson, Sean Scannell and Lee Novak, plus defenders Calum Woods and Murray Wallace all pushing for recalls.
Defender Joel Lynch missed out altogether on Saturday and could be recalled to the squad.
Midfielder Keith Southern is making good progress, but remains sidelined as he recovers from a long-term Achilles injury.
The Terriers, two points above the bottom three, have won three and lost three of their last six league matches.