Adaptable, as are some bands (7)
I believe the answer is:
elastic
'adaptable' is the definition.
(similar in meaning)
'as are some bands' is the wordplay.
I cannot quite understand how this works, but
'as' is found in the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for elastic that I've seen before include "Flexible, adaptable" , "Like one across" , "Stretchable material" , "Pliable" , "Stretchy knicker material" .)