A strange logo, good gracious! Dreary (6)

I believe the answer is:

gloomy

I'm a little stuck... Click here to teach me more about this clue!

'dreary' is the definition.
(I've seen this before)

'a strange logo good gracious' is the wordplay.
'a strange' is an anagram indicator.
'good gracious' becomes 'my' (I've seen this in other clues. I am not sure about the 'good' bit.).
'logo' anagrammed gives 'gloo'.
'gloo'+'my'='GLOOMY'

Can you help me to learn more?

(Other definitions for gloomy that I've seen before include "Dismal - despondent" , "dispiriting" , "Downcast" , "Dreary" , "Dim - pessimistic" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app