Aground on three.
1dn, 'When pieces are played, coughers can make folk bad-tempered', (8), G?O?C?E?. Grouches?
47ac, 'The woman protecting old rebel, offering cover', ((6), ?W?T??. Various words suggest themselves, but none that I can make sense of.
42dn, 'Star journalist and soldier involved in angry words', (3,5), ??? G?A?T. Something Grant?