Amelia B strangely approachable (7)
I believe the answer is:
amiable
'approachable' is the definition.
(thesaurus)
'amelia b strangely' is the wordplay.
'strangely' is an anagram indicator.
'amelia'+'b'='ameliab'
'ameliab' anagrammed gives 'AMIABLE'.
(Other definitions for amiable that I've seen before include "'Friendly, pleasant and good-tempered (7)'" , "'Cordial, friendly (7)'" , "'Affable, genial (7)'" , "Friendly, kindly" , "Of sweet and friendly disposition" .)