Must admit I missed this clue...

Is it Martin Jol?

Martini drink shortened to Martin

And similarly Jolt for sharp shock, shortened to Jol

Neat wordplay with the 'short sharp shock'

That's him !

Short month for Black's workmate, we hear

(darts)

Jan Dekker

180! / Bullseye! / Game shot and the match etc.

Rugby

Hmm, not very good on rugby only know the really famous players so some thoughts:

'at sea' is a typical anagram indicator, so 'finish in the spring' could be the fodder

or it might not be that straightforward.....

Finish in could be the last letter of 'in' = n, then re-scramble N+t h e s p r i n g, can't se it though

Or 'in' could be an instruction, so that (perhaps) a synonym of 'finish' eg: 'end' goes in the middle

Spring could be a synonym too such as water, or even a month like May

In your last 2 lines you have some very good thoughts.

Wendell Sailor.

Spring- Well with end in . At sea - sailor

Well done Dave, good solve!

Well done!

Little Derek goes after a supporter and has a laugh and makes a loud noise

Cricket

Supporter = Bra

Little Derek = D

Laugh = Ha

Loud Nouse = Din

Spells Brad Haddin, albeit with a 'd' missing?

Loud was an indicator of hearing the noise , but correct !

Ah, I see!

I leave her attic and I almost move

Snooker

(3,6)

Some form of anagram with TC leaving attic. Ian someone ? The only one I can trace is Ian Preece., or someone called Carter.

You've solved 66.6% of it above David! There is an anagram partly involved, but it's tough as its an anagram of a synonym, which I don't usually do tbh.

Ali Carter. I'll try to work out why !

Ok! I'll explain all a bit later if you can't fathom it out....right answer in any event

The solution was:

Her attic - Alicia(s) (Alicias Attic, pop duo) - 'I leave' means remove an 'i', leaving Ali Ca
I almost = Terry, almost = Terr.
Move is the anagram indicator = terr = rter

Err.. right! I'd never heard of Alicias Attic ,. never mind the rest!

I'll think of a new clue

Sorry, it probably was a bit too oblique

Permit to stop . I hear

Football

Premiership player ( 5,4)