Blasphemer, alderman, just a bit green (7)

I believe the answer is:

emerald

'green' is the definition.
(emerald is a kind of green)

'blasphemer alderman just a bit' is the wordplay.
'just a bit' says the answer is hidden in the clue.
'EMERALD' can be found hidden inside 'blasphemer alderman'.

(Other definitions for emerald that I've seen before include "Green - jewel" , "Led mare (anag.)" , "Green gemstone" , "city in Oz?" , "Green like this isle" .)

I've seen this clue in The Telegraph.

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