Get less iron, one could say? (8)
I believe the answer is:
decrease
I believe this clue is a double definition.
'get less' is the first definition.
(I've seen this before)
'iron one could say?' is the second definition.
(ironing clothing removes creases)
(Other definitions for decrease that I've seen before include "Peter out" , "Make or become less" , "subsidence" , "Plummet" , "Reduction" .)