Spectator2460Sleaze

[yellow11]

help-any hints re theme/
also 11a fit pm adopts latin not a little 10 ???????O??
14a tiring trek from jamaica by cat less ordinary 6 ???N??
17a very laid back mature amerind 5 ??A??
18a discoloured hat shared by half a dozen 5
thanks

[kettledrum]

17a Osage (so=very, laid back) + age

[Calibax]

18a L IV id

[Calibax]

Li VI(6) d

[pomona]

14a ja (o)unce

[roslyn251254]

11a hea l th some

[greyfox]

The word to be shaded in the grid is in the 10th row. It is synonymous with the puzzle title. Once found, check it in Chambers for the answers to all the unclued lights.

[yellow11]

many thanks all