times jumbo cryptic 839

[a.trembath]

A stinker this week! !'ve still got 8 to go Perhaps these three will lead me to the rest...
6d Hide one in bone, under cold meat (7) C_A_O_S Chamois? if so, why?
36 ac American lock-keeper's home shown by Constable painting initially (5-3) -O-B- ---
33 d Met professionals perhaps, wiping local casualty units after surgery (5,7) ---R- --N-E--

[Jumbuck]

6d yes CHAMOIS (hide)

one = i
bone = os, thus one in bone = ois

cold = c
meat = ham

c ham ois

36a BOBBY PIN (American lock-keeper = US hairpin)

home = in
constable = bobby
painting initially = p

bobby p in

[Jumbuck]

33d OPERA SINGERS (met professionals = at the New York Met)

wiping = erasing, local casualty units = ERs, surgery = op

op erasing ers

[a.trembath]

Many thanks Jumbuck - had not heard of Bobby Pin and didn't know ERs were casualty units.