Think badly of fool for entering seedy bar (10)
I believe the answer is:
disapprove
'think' is the definition.
(I know that disapprove is a more specific form of evaluate)
'fool for entering seedy bar' is the wordplay.
'fool' becomes 'sap' (synonyms).
'for' becomes 'pro' (as in being 'pro' or in favour of something).
'entering' means one lot of letters goes inside another.
'seedy bar' becomes 'dive' (as in a dive bar).
'sap'+'pro'='sappro'
'sappro' put inside 'dive' is 'DISAPPROVE'.
'badly of' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for disapprove that I've seen before include "Hold an unfavourable opinion (of something)" , "Censure" , "Reject" , "Not like" , "mind" .)