With Everyman dropping in, family mostly uncomplaining (5)
I believe the answer is:
stoic
'uncomplaining' is the definition.
(I've seen this in another clue)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for stoic that I've seen before include "he's not complaining" , "not given to complaining" , "Unflappable type" , "One patient under misfortune" , "Seeming unaffected by pleasure or pain" .)