Can They Detect Oxygen In Far-Flung Pleiades Sector? (5, 10)

[fatcracker1]

Can they detect Oxygen in far-flung Pleiades sector? (5, 10)
very dignified and cold before ominous shaking (11)
....in which to find large tool used in theatre (7)
With 21, Doctor treated customer (3,4)
Nominal chief of tribe's ritual dances (7)

[scorpiojo]

Radio telescope anag Pleiades sector + O
Ceremonious c(old) + ere + ominous
Scalpel
End user - 21 is ensue + Dr
Titular t(ribe) + ritual

[scorpiojo]

..follows on from clue 23 - places + L

[fatcracker1]

as usual Scorpiojo comes to my rescue thank you

[scorpiojo]

You're welcome, Jim :)

[fatcracker1]

have a cracker weekend Scorpiojo

[scorpiojo]

You too :o))