1. One giving a talk - on the radio? (7)
* * E * * * R
2. This is the simple bit (7)
* * * * F * E
3. Reconciliation officer who works behind the scenes? (4,2,3)
M * * * / * * / * * N
4. The head examiners may read them (5)
B * * * S
5. Plenty of roon for classy Picasso design (8)
S * * * i * * *