With no prospect of compensation, totally loveless marriage turned bitter (9)

I believe the answer is:

uninsured

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'with no prospect of compensation' is the definition.
(without insurance cover)

I don't understand the rest of the clue.

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(Other definitions for uninsured that I've seen before include "with no policies" , "Not covered against loss" , "Not covered for losses" , "Being without cover" .)

I've seen this clue in The Guardian.

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