Guardian 24,301

[gordonia]

Stuck on these 3 clues,any help appreciated,thank you.
13 across- First signs of early spring...snowdrop's opening...first signs of early spring...snowdrop's opening repeatedly. E?S?S

21 across- One ruling that results from endless repeats of 26?(7) N?M?R?H

19 down- Up before court? Balls!(7) E?E?T?D

[amalgam]

13a ESSES
21a NOMARCH
19d ERECTED ( erect + Ed (Balls))

[boleynground]

19d erected - ere (before) + ct + ed (ed balls politician?)
13 I put esses ( lots of the letter s at the beginnings I reasoned!!!!)

21 i haven't got, but at a guess I would say Nomarch, as Groundhog day is in February, so repeated would mean no March! - too much like Monarch, so I await another answer with bated breath

[boleynground]

here it is
http://en.wikipedia.org/wiki/Nomarch

[amalgam]

Sorry, my answer to 19d wasn't v explanatory. ERECTED is up, ERECT is ere +ct for court.

[gordonia]

Ta very much boleynground and amalgam,I'd thought of nomarch and erected,but wasn't sure of them.