A sex clue contrived about British? That can be forgiven (9)
I believe the answer is:
excusable
'forgiven' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives occasionally mean the same thing.
'a sex clue contrived about british?' is the wordplay.
'contrived' is an anagram indicator.
'about' means one lot of letters goes inside another.
'british?' becomes 'b' (abbreviation e.g. in 'BBC').
'a'+'sex'+'clue'='asexclue'
'asexclue' anagrammed gives 'excusale'.
'excusale' enclosing 'b' is 'EXCUSABLE'.
'that can be' is the link.
Can you help me to learn more?
(Other definitions for excusable that I've seen before include "Forgivable, pardonable" , "Justifiable" , "Not entirely to blame" .)