Stuck on the last few (some may have single letter misprint in definition)
1 across: We hear timber is what's required (5) ??R??
13 across: Imagined pagan got dog pursuing child's mother (7) ??H??N? (probably starts with M)
11 down: Flattered a group of OAP educationists (6) SO?KE? - I'm pretty sure it's souked but need the word play explaining.
38 down: Frighten underdeveloped parrot-wrasse? (4) ST??
Thanks in advance