Factor30 has indicated frustration with unemployment so here goes. Clarifications required as follows:
3 dn: Tough turned on grasping syndicate after a short time (9) S?R?N?E?T Why stringent? (I can see the "ring" but cannot match rest of clue to answer)
19 ac: Row on river in French region (8). ?A?A?G?E I cannot get harangue to match the clue.