Command given by chap with something on palm? (7)
I believe the answer is:
mandate
'command given by chap' is the definition.
'mandate' can be an answer for 'command' (I've seen this before). I'm unsure of the 'given by chap' bit.
'something on palm?' is the wordplay.
'something' becomes 'man' (I can't justify this - if you can you should believe this answer much more).
'on' says to put letters next to each other (in a down clue, letters appear on others).
'palm?' becomes 'date' (date palm is a kind of palm).
'man'+'date'='MANDATE'
'with' is the link.
Can you help me to learn more?
(Other definitions for mandate that I've seen before include "directive" , "approval" , "Official command; commission" , "Decree" , "Authority given by electorate" .)