Increasingly disconcerted by standards in war novel (in more than one way, some might say) (3,3,4,5)
I believe the answer is:
put out more flags
But I can't explain it at all!
(Other definitions for put out more flags that I've seen before include "instruction to lazy paver?" , "Plant extra irises" , "Evelyn Waugh novel" , "instruction for paver working overtime?" , "book" .)