Rung in later, shattered (7)
I believe the answer is:
ratline
'rung' is the definition.
(rope on a ship like the rung of a ladder)
'in later shattered' is the wordplay.
'shattered' indicates an anagram.
'in'+'later'='inlater'
'inlater' with letters rearranged gives 'RATLINE'.
(Other definitions for ratline that I've seen before include "Reliant (anag.)" , "Small rope for climbing on rigging" , "Rope forming part of steps on ship's rigging" .)