Gape at own goal by the French (4)
I believe the answer is:
ogle
'gape at' is the definition.
(I've seen this in another clue)
'own goal by the french' is the wordplay.
'own goal' becomes 'OG' (football abbreviation).
'by' says to put letters next to each other.
'the french' becomes 'le' ('the' in French).
'og'+'le'='OGLE'
(Other definitions for ogle that I've seen before include "Look at with amorous intentions" , "Stare at lecherously" , "Look at amorously" , "Cast flirtatious glance at" , "Eye lecherously" .)