JOINHANDS

NOCTURNESNight airs destabilised vessels, we gather HOTMINUTEPretty long time, in an idiom RATIONALEProportion and flair backing up the basis of one's argument CONVINCEDAssured AUDIOBOOKNovel, we hear, about university detective and bespectacled bachelor – not bad! TRUNCHEONStaff mid-morning meal starting late unfortunately, one behind time SLOWLORISWill Ross love aroused primate? SHEETCAKERectangular birthday dessert LIPSCHITZGerman mathematician’s slip up with constant affected variable MAINPOINTBottom LINE of a speech FRACTIOUSIrritable father to do something over promises of payment (9) ASSERTIVEConfident, revises at ground (9) SAFEHAVENSanctuary BIRDWATCHWhat some Audubon Society members do with binoculars ... or a hint to 16- and 19-Across?