It sticks out that this woman has angina regularly (6)
I believe the answer is:
hernia
'it sticks out that' is the definition.
The definition suggests a singular noun which matches the answer.
'woman has angina regularly' is the wordplay.
'woman' becomes 'her' (her refers to a woman).
'has' is a charade indicator (letters next to each other).
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
The alternating letters of 'angina' are 'nia'.
'her'+'nia'='HERNIA'
'this' acts as a link.
Can you help me to learn more?
(Other definitions for hernia that I've seen before include "An heir (anag.)" , "Rupture, organ penetrating the abdomen" , "Rupture, protrusion of organ through abdominal wall" , "Protrusion of organ through wall of abdomen, a rupture" , "A rupture within the body" .)