Take, Change, Add, Rearrange

[Space cat]

traipsed:

spirited

 

[wotan]

spirited

riptides

 

[Susiejb]

riptides

dirties

 

[Space cat]

dirties:

dirtiest

 

[Barnsbury]

dirtiest

tiredest

 

[Space cat]

tiredest:

resisted

 

[wotan]

resisted

sistered

 

[Space cat]

sistered

steroids

 

[Susiejb]

steroids

asteroids

 

[Space cat]

asteroids (that was too easy ):

ostracised

 

[bell824]

ostracised:

dissector

 

[Space cat]

(It's been a long time coming but --)

dissector:

recordists

 

[nelsy]

recordists

decorates

 

[Space cat]

I've tried and tried but I can only undo one of nelsy's three changes :

desecrator