How to recommend a terrible red nose (7)
I believe the answer is:
endorse
'how to recommend a' is the definition.
I can't judge whether this definition defines the answer.
'terrible red nose' is the wordplay.
'terrible' indicates anagramming the letters.
'red'+'nose'='rednose'
'rednose' anagrammed gives 'ENDORSE'.
Can you help me to learn more?
(Other definitions for endorse that I've seen before include "Give one's sanction to" , "Approve - support" , "Add one's authority to" , "Uphold" , "Publicly approve" .)