The Oldie 416

[TioMateo]

Attitude adopted by jet-set hostesses (5) ????S

Explicit mostly about old church organ part (7) ?????E?

Impressive thing put up to protect rise of iron bonds (4,5) R??? K???S

Girl from hospital featuring in Sun, perhaps (7) ??A???R

[goodgoalie]

3 Reef knots

[Neveracrossword]

1 Ethos, in the clue.

[Canary42]

Ethos

[writesbad]

heather - h(ospital) in heater (sun)

[davebro]

cochlea ?

[JimF]

2 COCHLEA

Explicit mostly = clea(r)
o = old
ch = church
Cochlea = part of the ear

[TioMateo]

Thanks for the first three. Their answers have provided 2 more letters for the last clue which now is :- Explicit mostly about old church organ part (6) ?O?H?R

[JimF]

It only has six letters now...?

[TioMateo]

Many thanks JimF (and davebro). My typo in the last of ?O?H?R (6 letters) should have been ?O?H?E? (7 letters). My apologies.