Walk on eggshells (9)
I believe the answer is:
pussyfoot
'walk on eggshells' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for pussyfoot that I've seen before include "Act timidly" , "one of a pair booted on stage?" , "[CATS PAW] ?" , "Tread delicately and indecisively" , "Be careful" .)