Sanctions target men with sheds, oddly (8)
I believe the answer is:
endorses
'sanctions' is the definition.
(endorsing is a kind of sanctioning)
'target men with sheds oddly' is the wordplay.
'target' becomes 'end' (end can mean one's purpose or goal).
'men with' becomes 'or' (I've seen this in other clues).
'oddly' means one should take alternating letters (letters in odd-numbered positions).
The alternating letters of 'sheds' are 'ses'.
'end'+'or'+'ses'='ENDORSES'
(Other definitions for endorses that I've seen before include "'Supports, backs (8)'" , "Countersigns, approves" , "One dress (anag.)" , "Approves, supports" , "Gives support or approval to" .)