Tough, stretch across to grab the man (7)
I believe the answer is:
spartan
'tough' is the definition.
(thesaurus)
'stretch across to grab the man' is the wordplay.
'stretch across' becomes 'span' (I've seen this in another clue).
'to grab' indicates putting letters inside.
'the man' becomes 'art' ().
'span' going around 'art' is 'SPARTAN'.
(Other definitions for spartan that I've seen before include "Austere - disciplined" , "Austere - like Lysander?" , "Austere, lacking comfort" , "Frugal" , "Not comfortable" .)