4 letter (change 1 letter)

[Just-me]

Trot

 

[Cazz]

Tart

 

[Just-me]

Rate

 

[Stiffernow]

Mate

 

[Just-me]

Tram

 

[Stiffernow]

Pram

 

[Just-me]

Maps

 

[Stiffernow]

Baps. (.)(.)

 

[Just-me]

Bags

 

[Stiffernow]

Sags

 

[Just-me]

Shag

 

[Stiffernow]

Slag ( sorry not you )

 

[Just-me]

Gels

 

[Stiffernow]

Sled

 

[Just-me]

Bled

 

[Stiffernow]

Lead

 

[Just-me]

Lace

 

[Stiffernow]

Lack

 

[Just-me]

Clap

 

[Stiffernow]

Flap