Go before pressure leads to really embarrassing surrender (7)
I believe the answer is:
precede
'go before' is the definition.
(I've seen this before)
'pressure leads to really embarrassing surrender' is the wordplay.
'pressure' becomes 'p' (abbreviation).
'leads to' indicates taking the first letters.
'surrender' becomes 'cede' (synonyms).
The first letters of 'really embarrassing' is 're'.
'p'+'re'+'cede'='PRECEDE'
(Other definitions for precede that I've seen before include "Antedate" , "Having to come in front" , "Come or go before" , "Pave the way" , "Take the lead" .)