clamant

adjectives

conspicuously and offensively loud; given to vehement outcry
"blatant radios"; "a clamorous uproar"; "strident demands"; "a vociferous mob"
demanding attention
"clamant needs"; "a crying need"; "regarded literary questions as exigent and momentous"- H.L.Mencken; "insistent hunger"; "an instant need"