Poetic analogies (7)
I believe the answer is:
'poetic analogies' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for similes that I've seen before include "Figures of speech showing resemblance between things" , "Figure of speech" , "Missile directed at figures of speech" , "Figures of speech such as 13 across and 4 down" .)