Times 25357 - Nuts and Bolts

I thought this was going to be an easy one as I raced away with the long anagrams at 4 and 11 and the partial one at 12 but my confidence was soon dented and I struggled with a word or two in every quarter, the NW being the most troublesome. In the end I needed 52 minutes which was rather on the slow side. There were no unknown words today and only a couple of meanings to look up before starting on the blog. I don't expect to be around to deal with matters arising after mid-morning UK time as my Christmas Day has been moved to the 28th this year.

Across
1	BARBARY APE - busY inside BARBARA, PE (gym)
6	CAST - Double definition. Plaster casts are called 'pots' apparently.
8	MAINMAST - MA,IN,MAST. I wasn't familiar with MAST as pig-feed. It's the fruits of various woodland trees such as chestnuts.
9	TORERO - TORE (lacerated) + OR reversed.
10	LUSH - Double definition.
11	OCEAN LINER - Anagram of IN CAERLEON.
12	BANGALORE - Anagram of ALONG inside BARE (exposed).
14	BOULT - U (Uranium) inside BOLT (lightning). This is Sir Adrian Boult 1889-1983. I saw him conduct a number of times.
17	EAGLE - Hidden
19	OPPOSABLE - OPPO (friend), SABLE (black).
22	RAGAMUFFIN - A, MUFF (mistake) inside RAGINg (going off the deep end).
23	PLEA - Pastor, LEA.
24	EDDIES - tEDDIES (bears).
25	HOT WATER - The definition is simply 'trouble' but the other angle is that HOT WATER is what one has inside a copper boiler.
26	ANTE - dANTE
27	DUTCH BARNS - DUTCH (wife in slang) BAiRNS (kids).
Down
1	BUMBLEBEE - BUMBLE (the Beadle in Oliver Twist), BEEn.
2	REINS IN - Anagram of SINNER + I (current).
3	READ-ONLY - ADd-ON (accessory) inside RELY (bank). Great clue.
4	AT THE DROP OF A HAT - Anagram of POTATO FATHER HAD. Delightful memories of Flanders and Swann.
5	EXTANT - sEXTANT (navigator's aid)
6	CARNIVORA - CAR (wheels) then IV (four) inside NO (number), Right, Answer.
7	SURREAL - SURREy (county), cALl.
13	GALVANISE - VAN (vehicle), I'S, all inside GALE (air force).
15	THESAURUS - ESAU (Rebecca's son - Genesis) inside anagram of RUTH'S. There's a tongue-twister about Esau sitting on a see-saw.
16	TOP-NOTCH - TOP (spinner), NOTCH (nick). The definition is A1.
18	ABANDON - A,BAND,ON
20	BOLSTER - S (seconds) inside BOLTER (runaway). I'm reminded of the character in 'The Pursuit of Love' who is referred to throughout as 'The Bolter'.
21	BUSSED - Sounds like 'bust'