Learning Curve.

[tommythumb]

Any help with these greatly appreciated
47. Royalty, overwhelmed by duty, got reserves for scholastic tasks. ( 8. 5)
56. Greek teacher could react badly during an appeal for help ... (8)
68. To judge standards colleges often estimate students' degrees adequate in seconds. (6)
69. Speaker to scold Queen! (8)
81. In year two Sophia is stalked by a false Romeo after losing her 1st class return. (9)
83. .. then rubs out a line and gets a scholarship! (7)

Many many thanks.

[Tilly2]

56 Socrates

[JJ109]

47. PE + Tomes
56 Greek = anagram of react + SOS
68. The "second letters of" Colleges often Estimate Students degrees adequate
69. University teacher
81 American term for a 2nd year student
83. anagram of Rubs + a ry