How promotion should be given to miner perhaps (2,5)
I believe the answer is:
on merit
'how promotion should' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'given to miner perhaps' is the wordplay.
'given' says to put letters next to each other.
'perhaps' is an anagram indicator.
'to' after 'miner' is 'minerto'.
'minerto' is an anagram of 'ON MERIT'.
'be' acts as a link.
Can you help me to learn more?
(Another definition for on merit that I've seen is " deservedly so".)