Aching after a few reps at the gym, say

Flash ___ (crowds that break into dance suddenly)4 Word for mother seen in "chrysanthemum"3 Milky precious stone4 ___ fide (genuine)4 Long-billed wading bird ... or a verb that means to make a sly or sneaky verbal attack5 Month after July, for short3 Chest-beating primate ... or a verb that means to imitate or mimic someone3 Link to a website (anagram of "lur"): Abbr.3