5d Siberian tree swelling inside (6) OST??T
19d Extended family with Chinese aunts and uncles primarily (6) ?H??A?
38a Inferior trinket on hire? (6) ?E?LE?
Still got one missing. 47a: Former head leaves Britain ?N?E. If former is the clue in could be ANCE, ONCE or ANTE but I don't understand the parsing. Or am I completely wrong?