11 across: Glaswegian tailor working order? (6)
Ya gotta love how DA twists the language: Glaswegian tailor = kilter (as in a maker of kilts) = kilter = working order.
20 across: Spooner said you (currently) can be clued by 4-down (tree) (3, 5)
Perhaps DA’s best Spoonerism: Spooner said you (currently) can be clued = Spooner said reader = red cedar = tree.
7 down: Bird in Whitechapel Bay? (3)
Brilliant piece of subterfude by DA: whitechapel bay = whitechapel howl = ‘owl (said like a cockney in Whitechapel) = owl = bird.
24 down: Consumed by dope, strongly lost to time (4)
What seems to have been the hardest for most people to solve turned out to be a goodie: dope, strongly lost to time = info f lost to t = into = consumed by.
18 across: Shot producing four prior to break? (6, 3)
An easy one, but a clever one: producing four prior to break = square prior to cut = square cut = shot.
13 down: Common article media skewed: Try Buddhism? (1, 4, 1, 5)
A brilliant clue made easy because of the odd letter arrangement of its answer: article media skewed: Try Buddhism = a media skewed do zen = a dime a dozen = common.
17 down: Somehow laundry finishes up in bigger domestic output (4, 5)
That somehow put me on wild goose chase instead of doing as follows: somehow laundry finishes up in bigger = wy up in greater = grey water = domestic output.
25 across: Fashion child clothing adults seen in bed? (6-2-3)
Another quality clue made easy by its answer’s letter arrangement. Nevertheless, masterful: fashion child clothing adults = forge tot clothing men = forget-me-not = seen in bed (a garden bed).
6 across: Retro old comic has initially cheated age (5)
I had the answer without a thorough explanation for a long time before thinking of comedians: retro old comic has initially cheated = retro Cope has initially cheated = epoch = age.
Now that I look at the explanation again, I notice it’s still not thorough: why purpose does cheated serve in the clue?
Update: I figured it was Julian Cope being referred to, but a glance at his Wikipedia page shows that, while he’s prolific in a number of fields, he’s never really done comic work.
No, the comedian referred to is Bob Hope, and the answer goes retro old comic has initially cheated = retro Hope has c = epoch = age.