Across
5a
Playing piano, uncle with FRCS is an accomplished pianist (7,7)
See 1
Top African city describing its environment (5)
Castle at first repaired and newly restored here (9)
I haven't cracked this one yet — but Fifteensquared have:
Anagram of CASTLE R[epaired] A[nd] N[ewly]. Lancaster Castle is currently undergoing a large-scale refurbishment, so maybe this is an &lit
He was bound to catch fire? (10)
I haven't cracked this one yet — but Fifteensquared have:
In Greek mythology, Prometheus stole fire from the gods and was punished by being bound to a rock and having an eagle eternally eat his liver
Architect and writer entertain on vacation (4)
I haven't cracked this one yet — but Fifteensquared have:
W[rite]R E[ntertai[N
One looks for treasure cache, possibly among 10? (11)
Dare to break with America’s ‘special relationship’ (11)
Not as many start off as pitcher (4)
Nursery doctor coming across outpour in bed (4-6)
Use one’s head swiftly when skinny kids start to abstain from food (5,4)
I haven't cracked this one yet — but Fifteensquared have:
THIN + K[ids] + FAST (abstain from food)
Open space in Casualty (5)
I haven't cracked this one yet — but Fifteensquared have:
GAP in A [and] E
28a
Had a go like crazy in swift mode of travel, etc (7,7)
See 27
Down
Badly dressed bum in funny clothing (6)
I haven't cracked this one yet — but Fifteensquared have:
RUMP in F[unn]Y
Britain draping its leader in part of its coat of arms (6)
I haven't cracked this one yet — but Fifteensquared have:
B[ritain] in A LION (part of the UK’s coat of arms, which is flanked by a lion and a unicorn)
Run Intercity (10)
I haven't cracked this one yet — but Fifteensquared have:
CANTER (run) + INTER (bury)
Graceful woman is quiet about work-up (5)
I haven't cracked this one yet — but Fifteensquared have:
Reverse of PLY (work) in SH
Bureaucrat in prison with drug dealer (9)
Some without a happy state (4)
Poet in residence seeing difficult birth in early James Bond premieres (1,1,6)
I haven't cracked this one yet — but Fifteensquared have:
BIRTH* in E[arly] J[ames] B[ond].. E. J. THRIBB is the eternally 17½-year-old “poet” in Private Eye who writes tributes to the recently-deceased, usually beginning “So. Farewell then..”
20d
My love, never try ear bursting, it’s a delicate body part (8,6)
Stuck in traffic with no toilets? A disaster (4-2-4)
Gold disc half lost, oddly no copy of recording (9)
I haven't cracked this one yet — but Fifteensquared have:
AU (gold) + DI[sc] + the even letters of lOsT + APE (copy)
During break, workers like some bottles of wine (8)
In the morning, perhaps, in case one forgets (8)
Maroon fibre (6)
See 8
Feel sick and so forth, must be admitted to right hospital (5)
I haven't cracked this one yet — but Fifteensquared have:
ETC (and so forth) in R H – retching is perhaps more than just feeling sick…
Fine and even slices of bread and vegetable (4)
I haven't cracked this one yet — but Fifteensquared have:
OK (fine) + even letters of bReAd
Type letters or click words in the clue