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