Why I Find British Cryptic Crosswords Hard

These are from Daily Mail Cryptic Crosswords vol 1

First Ten Puzzles

1. Definition part does not define the answer or is very obscure
• THAT'S ROTTEN = PERISHED -possibly like fruit?
  
• COLLAPSE IS SURE TO FOLLOW = KISS OF DEATH
• THEATRE CIRCLES = OPERA
2. Obscure anagrinds
• downfall
• displayed
3. Used ONE to mean A rather than I in a word containing both 
• anagram PRaCTICE = TRICEPS
  
4. Strange wordplay doesn't generate the result required
• writer heading off to tour city = R(EC)ITER  but where is the EC?
5. Strange letter combinations
• ROYAL COUPLE=KER; EMERGENCY CALLS=SOS AND SOS; BIBLE=AV
• ONE EARNING LEADER=NOIA; WORK=PER; OFFICER GUARDING AREA=ALT
• KING=R; CAPE=C; FOR ALL TO SEE=U; CORPORAL=CO; UNIFORM=UN
6. General names to specific:
• PORT=RIO; GREEK WOMAN=MAENAD; GIRL'S=DI'S
7. British Celebs
• PALMER-TOMKINSON=TARA; SEBASTIAN COE=SEB
8. British words, place names, slang
• CRASH=PRANG; MEDIC=MB; LONG TIME=YONKS
• BUTT OF JOKES=AUNT SALLY; UNCLE'S PLACE=PAWNSHOP
9. Cricket references
• WHERE RORY FINISHES=LIE; BIG SHOT AT LORD'S=SIX

And finally, what I call WTF's - for obvious reasons. Wordplay that makes absolutely no sense. Here is a sample of clues with answers that I could not work out even given the answer.

1. Private bike kept inside ground
• SQADDIE - Brit for 'private'. I couldn't find BIKE or an anagram of INSIDE in the answer
2. Short instructions in Lincoln's inn
• obvious answer BRIEF but how?
3. Means to climb or somersault and run around gym
• ROPE LADDER
• rev OR + PE for ROPE but the rest?
4. Match is over - Germany's crushed for a change
• EDIT - when I saw the answer, I thought I must be looking at the wrong page
• can find no way into this
• wow! just worked it out
• Match is over (rev TIE), Germany's crushed (D for Germany embedded in rev TIE)
  
5. It's clearly beginning to go off with good reason
• another that boggles the mind
• answer is RIGHTLY
• beginning to go off is obviously 'delete the head' from 'It's clearly'
• BRIGHTLY -> RIGHTLY?
  
6. Work in middle-of-the-road theatre circles
• work is often OP but not here, I think
• middle-of-the-road may be OA but the THE shouldn't be in the clue
• the OA could be part of the answer O(PER)A
• but then, is WORK=PER?

Anyway, if you can annotate the solutions of these WTF's please let me know at plaldridgester@gmail.com

Thanks

Les