11a follower carried in train (10) - d*s***l*n* - is is 'discipline'? - if so, poor clue! 12a mainly portend, mainly confound (13) - ***d*m*n***l* - is is 'fundamentally'? - if so, VERY poor clue!
They are perfectly understandable cryptic clues .
A follower ..disciple .."in " is "carried "within the word
Train means to discipline .
Same with the other one Confound indicates an anagram ... so "confound " mainly portend to make "mainly "and mainly means predominantly .