Pliant, plastic (7)
I believe the answer is:
ductile
I believe this is a double definition.
'pliant' is the first definition.
(synonyms)
'plastic' is the second definition.
(thesaurus)
(Other definitions for ductile that I've seen before include "Easily led" , "(Of metal) able to be drawn out into wire" , "Able to be drawn out thinly" .)