Like Shelley’s Prometheus in loose-leaf form (7)

I believe the answer is:

unbound

I believe this is a double definition.

'like shelley's prometheus' is the first definition.
(as in Prometheus Unbound, play by Shelley)

'in loose-leaf form' is the second definition.
(as in an unbound book)

(Other definitions for unbound that I've seen before include "Loose" , "Prometheus ... (Shelley)" , "Not restricted" , "Like Shelley's Prometheus" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app