Independant

[Totterdown]

Instigator of reconstruction in olde London? (4) -r-n
Only thing I can think of is Wren.

[dr b]

yes, Instigator (1st letter) of reconstruction = R, olde London = WEN, so W(R)EN, the architect. A clever &lit. clue.

[pbeach]

Agreed Dr B. An excellent clue.

[Totterdown]

Thanks very much dr b. I would have just put Wren (as the architect) not understanding the clue. I didn't know Wen was a word for olde London!

[pbeach]

And what is also excellent about this is that Wren was indeed an architect that was involved in the reconstruction of London after the Great Fire in 1666

[Totterdown]

Indeed a brilliant clue on all counts. Thanks to dr b and pbeach. You learn something new every day doing crosswords.

[dr b]

This:

http://wiki.answers.com/Q/Why_is_London_called _the_Great_Wen

has more on the "wen" part