Lovatts cryptic 124

getting there but stumped on these one's
35a opposite of obstinate ?0?t?a?y
47a where a pin can alter the balance
48a new series has us retuning in reprinted publications ?e?e?u?s
10d basis supplies for kitchen and office ?t?p?e?n
29d agression shown by presenter with plenty of ability ?o??i????
49d not natural to be squeezed into small space?o???d
50d robins anecdote is a bit crazy ?i????e insane? but why
Ta