Any clues please for 56, Lad, teen, who was untidy (4,2,4). and 68, Worker on strike could make a killing (6). Despite Sprinter's recent remarks, I have not seen these clues mentioned.
Thanks to all who have given hints. Can you help with (a) The final penguin made the best picture. And (b) Author can only do novel in Spain. He recorded the exploits of this soldier . Hints only...