Three-year-old Words Are Weapons could play her part in a potentially big day in the fledgling career of trainer Sam Kavanagh on Saturday.

Words Are Weapons will run in the Listed Creswick Stakes (1200m) at Flemington for the Adelaide-based Kavanagh while the trainer has an anxious wait to find out if Midsummer Sun makes the field for the Group Two Brisbane Cup (2400m).

Kavanagh, who branched out on his own last year after working for his trainer father Mark, is set to move to Sydney next season.

He has three stakes wins to his credit in South Australia and is eager for his first interstate stakes success.

The unbeaten Words Are Weapons earned her shot at the Creswick Stakes with wins at Gawler and Morphettville.

"I don't know how she'll go over six furlongs for the first time and down the straight for the first time, but she's certainly got ability," Kavanagh said.

Saturday's event is one of two planned stakes-race starts for the filly before the end of the season.

"She only has a couple of months left to get black type as a three-year-old," Kavanagh said.

"This race and the Dermody Stakes are the logical races to try to do that."

The Creswick Stakes is the feature on a 10-race Flemington program where two events were added to compensate for the wash-out at Sandown on Saturday.

Kavanagh said Words Are Weapons was a progressive filly who was continuing to improve.

"I don't know how far she's going to go but this was the logical step," he said.

Former English horse Midsummer Sun was impressive winning his first two Australian starts before disappointing in the Premier's Cup in Brisbane last start.

Kavanagh is sweating on him making the field in the Brisbane Cup (2400m) and said he was in "pretty good order".

The trainer said the import got "fired-up" early in the race, over-raced and pulled up a bit distressed straight after the Premier's Cup.

"But half an hour after the race he was fine, and he worked very well on Saturday morning," Kavanagh said.