Elongated or expanded (8)
I believe the answer is:
extended
I believe this clue is a double definition.
'elongated' is the first definition.
(I know that elongated can be written as extended)
'expanded' is the second definition.
(synonyms)
(Other definitions for extended that I've seen before include "Stretched out over time or space" , "Stretched or reached out - the hand of friendship? (8)" , "Prolonged, lengthened" , "Long" , "Lengthy" .)