The clues....

Inside bend of a hook (anag.

ACROSS 8 of ‘or that’) (6) 7 11 Angler’s rain protection (8) Type of tree ... in channel, Derry (5) 12 Lines of several baits on PVA tapes (anag. of ‘rents rigs’) (9) 13 Third largest of the Tring reservoirs in Herts. (anag. of ‘throws arm’) (9) 15 Fluid-filled, hollow, pole elastic (5) 17 Stale, like old bread or cheese (6) 19 A double-hook rig attached to a clip (6) 22 Freshwater eels will return here to spawn (5) 23 A soft bait (anag. of ‘estate map’) (4,5) 25 Vicious, as e.g. a pike (9) 27 This Chilterns town is at the River Lea’s source (5) Scottish lake near Aviemore 29 30 (4,4) Small stone smoothed by water (6)

DOWN 1 Rivulets (anag. of ‘Masters’) (7) 2 __ French, angling conservationist, or _ Taylor, angler/journalist (4) 3 River of SE Scotland (anag. of ‘a worry’) (6) 4 The Witham flows through this Lincolnshire market town (8) 5 Small Warwickshire river (anag. of ‘lane’) (4) 6 This Cornish resort is on the Camel estuary (7) 9 Wetland area (5) 10 Also called sea hawk or fish eagle (6) 14 Major river of SE France (anag. of ‘heron’) (5) 16 Prepare a game-fishing fly (5) 18 It stops spill-off from reel spool (4,4) 19 Bronze-coloured, e.g. like a chub’s flanks (6) 20 Rivers Bure and Yare are in this eastern county (7) 21 Twist and turn as many slow-moving rivers do (7) 23 Ties up boat to a jetty, etc (5) 24 Bait used for carp, etc, often fishmeal-flavoured (6) 26 Packbait ingredient? (anag. of ‘Eric’) (4) 28 Cylindrical holder for poles, floats etc (4)