Be too late with letter and fail to get the job (4,3,4)
I believe the answer is:
miss the post
'be too late' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'letter and fail to get the job' is the wordplay.
'letter' becomes 'he' (he is a kind of letter of the alphabet).
'and' says to put letters next to each other.
'fail to get' becomes 'miss' (I've seen this before).
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'job' becomes 'post' (post is a kind of job).
'miss'+'t'='misst'
'he' after 'misst' is 'missthe'.
'missthe'+'post'='MISS THE POST'
'with' acts as a link.
Can you help me to learn more?