Impressions of male wearing gaiters pulled up (6)
I believe the answer is:
stamps
'impressions' is the definition.
('stamp' can be a synonym of 'impression')
'male wearing gaiters pulled up' is the wordplay.
'male' becomes 'm' (common abbreviation).
'wearing' means one lot of letters goes inside another.
'gaiters' becomes 'spats' ('spat' can be a synonym of 'gaiter').
'pulled up' says the letters should be written backwards.
'm' inserted inside 'spats' is 'spmats'.
'spmats' back-to-front is 'STAMPS'.
'of' is the link.
(Other definitions for stamps that I've seen before include "Imprints" , "creates an impression" , "Cuts out with a die" , "Items of interest to a philatelist" , "Tramples" .)