In a way, hearty women appearing in a show (7)
I believe the answer is:
somehow
'in a way' is the definition.
(I've seen this before)
'hearty women appearing in a show' is the wordplay.
'hearty women' becomes 'ome' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'appearing in' indicates putting letters inside.
'ome' put inside 'show' is 'SOMEHOW'.
Can you help me to learn more?
(Other definitions for somehow that I've seen before include "For some unspecified reason" , "In an unspecified manner" , "For an unknown reason; so who, me? (anag.)" , "One way or another" , "By unspecified means" .)