Britain's FTSE hit by commodity reversal

* FTSE 100 down 0.4 pct
* Estate agents slump on fee clampdown plans
* Housebuilders, utilities choppy after Autumn Statement
* Thomas Cook (Frankfurt: A0MR3W – news) rises to highest since May (ADVISORY- Follow European and UK stock markets in real time on the Reuters Live Markets blog on Eikon, see cpurl://apps.cp./cms/?pageId=livemarkets)
By Alistair Smout
LONDON, Nov 23 (Reuters) – Britain’s top share index fell on Wednesday, hit by a reversal in mining and energy stocks a