Lusty men try desperately to get into crack regiment (6)
I believe the answer is:
'lusty men' is the definition.
The answer and definition can be both people as well as being plural nouns.
Maybe there's a link between them I don't understand?
'try desperately to get into crack regiment' is the wordplay.
'desperately' is an anagram indicator.
'to get into' is an insertion indicator.
'crack regiment' becomes 'sas' (I can't justify this - if you can you should believe this answer much more).
'try' is an anagram of 'tyr'.
'tyr' put inside 'sas' is 'SATYRS'.
Can you help me to learn more?
(Other definitions for satyrs that I've seen before include "Greek gods of woodlands" , "Roman woodland gods or lustful men" , "goat-like characters" , "Woodland deities who attended Bacchus" , "Woodland gods with goats' ears and legs" .)